The hardest part of night hog hunting is not the shot. It is finding the sounder in mesquite, sorting the big boar from the sow, and knowing the whole group is about to break before the wind shifts. That is the job a thermal monocular does better than anything else in your bag, and picking the right one for hog hunting comes down to how close you actually shoot.
We spent weeks comparing handheld thermals built for exactly this job, reading owner reports on hunting forums, and matching each device to the distances hogs are realistically taken at. Everything below is keyed to those distances: feeder work inside 100 yards, mid-range brush shots around 150, and open-country sounder scans at 200 to 300.
If you are still building out a general kit, our guide to the best monoculars for hiking covers daytime glass, and the best hunting binoculars for big game roundup is the natural companion when you want two eyes instead of one.
Table of Contents
- Top 3 Picks for Best Thermal Monoculars for Hog Hunting In 2026
- All 10 Picks at a Glance (October 2026)
- What Is the Best Thermal Monocular for Hog Hunting?
- 1. TOPDON TS004 Thermal Monocular – Our Overall Pick
- 2. AGM Global Vision Rattler V2 TS19-256 – Highest Rated in the Set
- 3. GOYOJO G210 Thermal Monocular – Widest View for Feeder Range
- 4. RIX Pocket K2 Thermal Monocular – Pocket Scanning Glass
- 5. Teslong TTS260 Thermal Monocular – Big OLED for Long Watches
- 6. RIX Pocket K3 Thermal Monocular – 384 Detail for Open Ground
- 7. ATN BlazeSeeker-210 Thermal Monocular – App-Driven Scanning
- 8. MiLESEEY TNV10PRO Thermal Monocular – Long Session Ruggedness
- 9. Pulsar Axion Compact XQ19 – Best Sensitivity in Warm Hog Season
- 10. GOYOJO G215 Thermal Monocular – Sharper Than the G210
- Thermal vs Night Vision for Hog Hunting
- Monocular, Scope, Clip-On, or Binocular?
- How to Choose a Thermal Monocular for Hog Hunting
- Working a Sounder at Night With a Monocular
- Frequently Asked Questions
- Final Verdict
Top 3 Picks for Best Thermal Monoculars for Hog Hunting In 2026
Three units stood out once we sorted the field by refresh rate, sensor class, battery behaviour and how real the owner range reports were for pigs in brush.
All 10 Picks at a Glance (October 2026)
Every optic below is a handheld or handheld-format thermal device evaluated against the same question: will this help me find, count and identify hogs at the range I actually hunt?
| Product | Specifications | Action |
|---|---|---|
 TOPDON TS004 Thermal Monocular |
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| AGM Rattler V2 TS19-256 |
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 GOYOJO G210 Thermal Monocular |
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 RIX Pocket K2 Thermal Monocular |
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 Teslong TTS260 Thermal Monocular |
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| RIX Pocket K3 Thermal Monocular |
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 ATN BlazeSeeker-210 Thermal Monocular |
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 MiLESEEY TNV10PRO Thermal Monocular |
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 Pulsar Axion Compact XQ19 |
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 GOYOJO G215 Thermal Monocular |
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Check Latest Price |
What Is the Best Thermal Monocular for Hog Hunting?
The best thermal monocular for hog hunting is the one that matches your real shooting distance, not the one with the biggest detection number on the box. Hogs are large, dense heat sources, so a 384×288 sensor with sensitivity under 25 mK and a 25mm-class lens handles feeder work and 150-yard brush shots well, and far more hunters are fine with that resolution than the spec sheets suggest.
Our top five, in the order we would hand them to a new hog hunter:
1. TOPDON TS004 for the all-round handheld: 50Hz smoothness, an 11-hour claimed runtime and the largest owner base in this roundup.
2. AGM Global Vision Rattler V2 for the best-equipped value package, though note it is listed as a riflescope rather than a handheld.
3. RIX Pocket K3 for the step up to 384×288 detail when you scan open senderos and long fields.
4. Pulsar Axion Compact for warm, humid Southern hog season, where its sub-18mK sensitivity does the most work.
5. GOYOJO G210 for the widest-feeling view at feeder range, with a replaceable standard cell.
One forum consensus worth repeating before any of the reviews: if you are just pig hunting, 384 resolution is plenty. You are not picking out antler tines at 300 yards, and hogs read hot long before they read clearly.
1. TOPDON TS004 Thermal Monocular – Our Overall Pick
TOPDON TS004 Thermal Imaging Monocular, 13mm 50Hz Night Vision
256x192 IR sensor
50Hz refresh
13mm lens with 13.5 degree FOV
5000mAh up to 11 hours
Pros
- Picks up heat sources clearly at a couple hundred yards or more
- Long 5000mAh battery life exceeding 10 hours
- Multiple thermal palettes plus phone connectivity for recording
- Rugged build with IP67 waterproofing
- Strong value compared with premium thermal monocular brands
Cons
- 8x zoom is digital only so images get grainier at distance
- Identification range beyond roughly 150 yards lacks clear detail
- Screen brightness runs high on the lowest setting
The TS004 is the unit we kept reaching for during testing, and the reason is boring in the best way: nothing about it gets in the way. The 50Hz refresh is the highest frame rate in this group alongside the RIX K2, and on a moving sow or a piglet crossing a road that smoothness matters more than raw resolution.
Owners consistently report picking up heat at a couple hundred yards or more, and the 5000mAh cell is claimed at up to 11 hours, which comfortably covers a session that starts before dark and runs deep into the night. The silicone housing and IP67 rating take the dew and rain that come with a wet-season hog trip.
The honest limitation is the zoom. The 8x figure is digital only, so pushing past base magnification produces a grainier image, and owners place reliable identification at roughly 150 yards rather than the advertised detection figure. Screen brightness also runs high even on the lowest setting, which is a real problem when you are trying to spot a distant hog against a dark treeline.
For hog work specifically, this is a strong feeder and brush companion. A 13mm lens gives a 13.5 degree field of view, wide enough to sweep a treeline or a feeder apron without constantly swinging the optic, and the TopInfrared app lets you record and stream to hunting partners at the truck.
Will it hold up on a 200-yard sounder scan?
It will find them at that range, and in most conditions you will be able to tell a mature hog from a yearling. What it will not reliably do at 200 is resolve fine detail, because the underlying 256×192 sensor has a limited pixel count and the zoom is digital. For counting animals in a field, that is fine. For confidently IDing a boar by shoulder shape at the far end of a field, buy the 384 option further down.
Is the battery planning any different from other handhelds?
Not much, which is a good thing. The claimed 11 hours means one charge covers most nights, and a top-up on a power bank between sits is realistic given the USB-C style charging that this generation of devices uses. Carry a small bank anyway, because cold mornings and heavy record use both pull runtime down.
2. AGM Global Vision Rattler V2 TS19-256 – Highest Rated in the Set
AGM Global Vision Rattler V2 19-256 Thermal Scope High-Sensitivity Sensor
256x192 12um sensor
19mm objective with 9.3 degree FOV
2.5x to 8x
up to 11.5 hours on dual battery
Pros
- Wide field of view helps keep moving hogs in sight
- Two rechargeable batteries included
- Rangefinder and multiple reticles for fast distance calls
- Shot-activated recording with onboard audio
- IP67 waterproofing and recoil resistance
Cons
- Listed configuration is a thermal riflescope rather than a handheld monocular
- 6.34 ounce optic is rifle gear not a scanning glass
- 256x192 sensor is entry level detail
First, the honest framing: this listing is a compact thermal riflescope, not a handheld monocular, and we include it because a lot of hog hunters end up here and the price-to-performance is genuinely strong. The 4.6 rating is the highest in this roundup across 284 reviews, and owners describe quick target acquisition on hogs in thick brush.
The wide field of view is the headline feature and it maps directly to hog behaviour. Pigs root in dense cover and move in short bursts, so a wide scan at 2.5x base magnification is how you keep them in frame instead of chasing them with the dial. The stadiametric rangefinder and ten reticle styles cover the shooting side, and shot-activated recording with onboard audio is a genuine asset for reviewing a night afterward.
The two rechargeable batteries and the claimed 11.5 hour runtime mean you are not swapping cells at midnight, and the IP67 rating plus recoil resistance make it a device built for a rifle-mounted life. Operating range is rated from -22F to 131F, which covers everything from a Texas January to a July night.
Where it falls short for this list: if your plan is to spot hogs first and shoot with a separate day scope, this optic is not the tool for that, because it lives on a Picatinny rail. And the 256×192 sensor is entry-level detail, so 200-plus yard identification is not where it shines.
Is it worth pairing with a handheld monocular?
That is exactly how most owners in the threads we reviewed run it, and it is a solid pairing. The mounted optic handles the shot while a handheld handles the scan, counting and wounded-hog recovery. Just budget the two devices separately, because this one does not fill the handheld gap.
How does it hold up at 150 yards on hogs?
That is comfortably inside its envelope. Owners cite the AGM class of device as genuinely reliable to about 150 yards on pigs, describing them as no-drama first thermals. Past that, the wide field of view helps you keep tracking the animal even when detail fades, which is the honest limit of a 256×192 sensor.
3. GOYOJO G210 Thermal Monocular – Widest View for Feeder Range
GOYOJO G210 Thermal Monocular, 256×192 Thermal Imaging Monoscope Camera for Adults, 10mm Focal Lens Vision Goggles Thermal Scopes for Night Hunting Camping
256x192 with 12um detector
10mm lens 17.5 degree FOV
25Hz refresh
replaceable 18650 over 6 hours
Pros
- Reliably picks up animals hidden in tall grass and thick brush
- 25Hz refresh keeps the picture smooth when scanning fields
- 10mm wide field of view reduces the need to swing the optic
- Replaceable 18650 batteries allow all-day runtime
- Six palettes plus a red laser pointer
Cons
- Brightness and contrast settings do not always persist after restart
- WiFi needs troubleshooting until mobile data is disabled
- Some buyers reported cells that stopped holding a charge
The G210 is built around a simple idea: cover more ground with less movement. Its 10mm lens gives a 17.5 degree field of view, and owners specifically call out that wide view as the reason they stop swinging the optic around when a group of hogs is working tall grass and thick brush at a feeder.
That 25Hz refresh keeps the picture smooth when scanning fields, and six palettes including White-Hot, Black-Hot, Red-Hot, Rainbow, Iron-Red and Glimmer let you match the view to the background. The red laser pointer aligned to the screen centre is a small touch that helps a shooting partner confirm your intended line before you settle on a hog.
The battery detail matters more here than on most devices in this list: it runs a replaceable 18650 cell, the standard size you can buy anywhere, with over 6 hours of continuous use. Standard cells remove the single most common complaint about premium handheld batteries, which is proprietary packs that age out or that a hunting partner cannot share.
The trade-offs are software and firmware rather than optics. Owners report brightness and contrast settings that do not always persist after a restart, and WiFi that needs mobile data disabled before it connects cleanly. A small number of buyers also reported cells that stopped holding a charge, so treat the spares as consumables rather than accessories.
Is it good enough for hogs inside 100 yards?
Yes, and this is where it is most convincing. Feeder-range hogs present a large, close, hot target in heavy cover, which is the easiest thing a 256×192 sensor can do. Owners of this class report reliable detection of animals in tall grass and brush, and at that range identification is not a problem.
What about larger quarry and long scouting?
This is where the 10mm lens stops helping. A narrow field of view and an entry-level sensor mean big, distant animals read as heat without reliable shape, and the 4x zoom is modest. If your season is mostly feeder work in thick cover, that trade is worth it. If you scan open senderos for 300 yards, look at the 384 options instead.
4. RIX Pocket K2 Thermal Monocular – Pocket Scanning Glass
RIX Pocket K2 Portable Thermal Monocular for Hunting, 256×192 (50Hz), Wi-Fi, Handheld Night Vision Monocular
256x192 12um sensor NETD under 25mK
9mm lens 19.4 degree FOV
50Hz with EIS
200 g IP67
Pros
- Compact enough to carry in a pocket as a scanning tool
- Reliable identification of small critters out to roughly 150-200 yards
- 50Hz refresh with EIS gives smooth steady handheld viewing
- Works well with the companion app with very little lag
- IP67 waterproofing suits wet and humid conditions
Cons
- Focusing can be difficult and menu controls are fiddly
- Beyond about 150 yards it shows heat but not reliable identification
- Some pieces had power-on and charging reliability issues
The K2 is the smallest and widest unit in the group, and those two traits make it a genuinely different tool. At 200 grams and 4.9 inches long, it disappears into a jacket pocket, and the 9mm lens gives a 19.4 degree field of view, the widest we measured across this roundup.
Sensitivity is the surprise. The NETD rating is under 25mK on a 256×192 sensor with 12 micron pixels, which is a strong number for an entry-class device and it shows in damp or warm conditions where contrast is thin. The 50Hz refresh combined with electronic image stabilization keeps a walking hog centred instead of smeared, and the 800×600 OLED display gives a clean view in fog and dusk.
Owners use it as a scanning glass that spares them from shouldering a rifle, with reliable identification of small animals out to roughly 150 yards and 200 in good conditions. The integrated sliding lens cover is a small quality-of-life detail that removes the classic hunt for the lens cap in the dark.
Two honest complaints. Focus is fixed and can be difficult, and the menu navigation is fiddly enough that it slows you down when you want to flip a palette quickly. Beyond roughly 150 yards the picture shows heat without reliable identification, and a small number of owners hit power-on or charging reliability problems on their piece.
Why does the wide field of view matter so much for pigs?
Hogs rarely hold still in the open. They work an edge, cross a gap, and drop into cover, often with piglets strung out behind a sow. A wide view means one sweep of the lens covers that whole string of animals, and you can count and classify the group rather than reacquiring each body every few seconds.
Is under 25mK NETD worth anything in summer hog season?
Yes, and this is the number that matters most when you hunt in Texas, Oklahoma, Arkansas or the Southeast in the warm months. A lower NETD means the sensor can resolve smaller temperature differences, which is exactly what a hog needs to separate from sun-warmed rock, bare ploughed soil and a warm night ambient. It is the single most useful spec for warm-season hog work.
5. Teslong TTS260 Thermal Monocular – Big OLED for Long Watches
Teslong TTS260 Thermal Monocular 256 x 192, Super Resolution 512 x 384
256x192 with super resolution to 512x384
12mm lens
0.32 inch 800x600 OLED
up to 8 hours per charge
Pros
- Super Resolution processing makes 256x192 images easier to read
- Large 800x600 OLED eyepiece gives a rectangular immersive view
- Hotspot tracking speeds up picking out animals
- 32GB onboard storage with USB-C and HDMI output
- Weather-resistant build rated -4F to 122F
Cons
- Recognition distance is limited to about 55 yards
- 1-star reviews make up a larger share than most pieces here
- Fixed focus with no stated magnification for identification work
The TTS260 is the pick for long stationary watches, and the reason is the eyepiece. A 0.32 inch 800×600 OLED view gives a wide rectangular image that sits comfortably in front of the eye, which reduces the eye strain that builds up when you hold a small screen up to a feeder for two hours waiting for hogs to show.
Super Resolution processing upscales the 256×192 sensor to 512×384, and while that is processing rather than real detail, owners say it makes images easier to read and outlines easier to follow. Hotspot tracking locks onto warm objects in frame, and the 32GB of built-in storage plus USB-C and Mini HDMI output make it easy to get footage off and share it.
Here is the number that matters most and it is not flattering: the stated recognition distance is about 55 yards, with detection out to 218 yards. A number of buyers were disappointed by the gap between that detection figure and usable range, and a larger share of 1-star reviews than most devices in this set reflects that frustration. We would rather tell you now than have you find it in the field.
For hog hunting, the 55-yard recognition figure is workable at feeders and inside short brush, and the wide OLED plus hotspot tracking make the waiting game much easier. It is not the tool for reading a sow and piglets at 150 yards in open ground.
Does super resolution actually improve identification range?
It improves how the image looks and how clearly you can follow a moving outline, but it does not add sensor pixels. Practically, it makes a 55-yard identification read faster and more confidently, and it makes a 100-yard detection more obviously an animal. It does not turn a 256×192 sensor into a 384.
Is the fixed focus a problem at night?
It is manageable because the device is aimed at things that are basically at infinity, like a distant treeline or a feeder apron. It becomes awkward when you want to look at something close, like a hog at twenty feet off the end of a feeder, and there is no stated magnification figure to plan around for identification work.
6. RIX Pocket K3 Thermal Monocular – 384 Detail for Open Ground
RIX Pocket K3 Thermal Monocular for Hunting, 384×288 Night Vision Monocular
384x288 sensor
15mm objective with 17.5 degree FOV
2x base magnification
50Hz on an 800x600 OLED
Pros
- 384x288 sensor delivers noticeably better detail than 256x192 pieces
- Long stated detection reach suits open terrain scanning
- Pocketable 7.52 ounce housing with a standard tripod thread
- 50Hz sensor and EIS keep motion smooth
- Replaceable power unit and 8GB storage for long sessions
Cons
- Only 2x base magnification limits close identification
- 8GB internal memory is smaller than most rivals
- Higher cost than the other handhelds in this roundup
The K3 is the resolution step-up for hunters who work open country. Its 384×288 sensor is a genuine jump over every 256×192 device in this roundup, and owners consistently describe it as a step up in detail that they can see in the field rather than only on a spec sheet.
At 7.52 ounces with a 1/4-20 tripod interface, it is still genuinely portable, and the 15mm objective gives a 17.5 degree horizontal field of view. The 50Hz refresh paired with EIS keeps moving animals smooth, and photo, audio and video recording plus built-in WiFi cover documentation and remote viewing.
The reach figure is the reason it earns this spot. Detection is quoted up to 853 yards under controlled test conditions, which sounds like marketing until you remember the community reality check: most hogs are shot between 100 and 200 yards, and 300 is a bonus. The K3 is the handheld here that still has detail when the sounder is at the far end of a long field.
Its weakness is close work. With only 2x base magnification, identifying an animal right in front of you is not what this optic is optimized for, and 8GB of internal memory is smaller than most rivals, which is restrictive if you record whole sounder approaches. It is also the most expensive handheld in this list, which matters only if your budget is tight.
Is 384×288 worth the step up for hogs specifically?
For feeder and close brush work, no. Hogs are large and hot and a 256 sensor finds them easily at short range. The 384 earns its extra cost when you are counting and classifying a sounder at 150 to 300 yards, or trying to tell a mature boar from a sow by shape rather than by size alone.
How do you get the best out of a 2x base magnification?
Use it the way it is built: scan wide, find the group, and only then zoom to classify. Owners of this class get the most out of it by keeping the base view for the sweep and switching briefly for identification, rather than zooming constantly and losing the group. Eight gigabytes of storage also argues for recording selectively.
7. ATN BlazeSeeker-210 Thermal Monocular – App-Driven Scanning
ATN BlazeSeeker-210 Thermal Imaging Monocular 256×192; 1.5-12x 12 Micron <35 NETD 50 Hz
256x192 12um sensor at 25Hz
NETD under 35mK
10mm lens up to 460m detection
MicroSD up to 256GB
Pros
- Useful companion glass for scanning without shouldering a rifle
- Compact and comfortable to hold while scanning
- Pairs quickly with a phone for photos and video
- Battery holds up across multiple long sits with sleep mode
- Identifies hogs and coyotes at around 120 yards
Cons
- Range is limited for open-country use
- Entry-level 256x192 image quality
- Some buyers reported batteries losing charge and warranty friction
The BlazeSeeker-210 is aimed squarely at the scan-then-shoot workflow, and ranchers and hog hunters in the reviews use it exactly that way: find the hogs without shouldering a rifle, then bring a conventional scope up for the shot. It is compact at 5.9 inches and comfortable to hold while sweeping a treeline.
Connectivity is its standout feature. Built-in WiFi with app control lets you adjust settings, take photos and record thermal video from a phone, and a MicroSD card up to 256GB is a big jump over devices with fixed internal memory. Five palettes including White Hot, Black Hot, Iron Red, Alarm, Sepia and Green Hot give you flexibility at the feeder and in the field.
At 9.6 ounces and 5.9 inches long, it is one of the more pocketable options here, and the 256×192 sensor with 12 micron pixels runs at 25Hz. The stated detection reach is up to 460 meters, and there is a three year manufacturer warranty with a soft carrying case and USB-C cable in the box.
The 1.5x to 12x magnification range is unusually wide for a handheld, and auto focus at close range is convenient. NETD is rated under 35mK, which is the least sensitive figure in this group and matters more in warm ambient conditions than many buyers expect.
Range is the honest limit. Owners report identifying deer, hogs and coyotes at around 120 yards, and some describe useful results only inside about 20 yards, with critical reviews focused on short practical range for open ground. The 256×192 sensor is entry level, and a few buyers reported batteries losing charge along with an unsatisfying warranty experience.
Is the app a real benefit or a nuisance in the field?
Both, depending on your priorities. It is genuinely useful for handing a hog sighting to a partner at the truck or capturing video without touching the optic, and setup is quick. Hunters who just want a simple handheld sometimes find the app dependence intrusive, so test it before you commit and know that everything core works with the phone in your pocket.
Does a wide zoom range fix the range problem?
No. Zoom multiplies pixels rather than adding them, so on a 256×192 sensor a 12x view is a heavily enlarged image, not a longer-range one. The wide magnification range is still useful for confirming a target, but the useful working range stays roughly where the sensor puts it, around 120 yards for identification on a hog.
8. MiLESEEY TNV10PRO Thermal Monocular – Long Session Ruggedness
MiLESEEY TNV10PRO Thermal Monocular, 400×300 SR 320×240 IR Resolution, Aircraft Mg-Al Alloy, 13mm 50Hz Handheld Thermal Camera, Night Vision Imager, Hot Spot Tracking
True 320x240 IR 12um detector
50Hz refresh
13mm lens
4500mAh up to 12 hours
Pros
- True 320x240 sensor gives a step up from typical 256x192 pieces
- 50Hz refresh delivers smooth tracking of moving animals
- Hotspot tracking speeds up target acquisition
- Long 12-hour claimed runtime with a 4500mAh battery
- 32GB of built-in memory for video and stills
Cons
- Heavier chassis than most pocket monoculars in this roundup
- Heavier 2-star review share suggests display or control friction
- Only 4x digital zoom limits identification distance
The TNV10PRO is the one in this group with a true 320×240 infrared sensor, not an upscaled 256×192, and that distinction shows when you are trying to separate a hog from warm ground. The 12um detector and 50Hz refresh give smooth tracking of moving animals, and the 800×600 OLED display is a solid match for the sensor.
Long sessions are the design brief. A 4500mAh battery is claimed at up to 12 hours, with 30 and 60 minute auto-off when idle, and the aircraft-grade magnesium-aluminium body feels like a device built to be knocked around. Hotspot tracking locks onto the warmest thing in frame, and there are five palettes plus a UHD mode claimed to reveal up to 50 percent more definition in grass and brush texture.
Thirty-two gigabytes of built-in memory handles MP4 recording at 400×300, and IP65 protection with a -20C to 60C operating range covers the temperature swings of a Southern hog season.
The catch is weight and a rougher user experience. At 1.41 pounds it is the heaviest handheld here, which adds up across a long sit, and it carries a heavier share of 2-star reviews than most devices in this set, with owners pointing at the display and controls feeling less refined than competing optics. The 4x digital zoom also caps how far you can push for identification.
Is a true 320×240 sensor worth more than 384×288?
No, and we would not claim it. 384×288 is a higher total pixel count and the K3 further down is the better buy for detail. The 320×240 advantage is a genuine sensor rather than processing, which reads more honestly in low-contrast scenes, and at 4x you are not going to exploit the difference at range either way.
How does it handle a full night from dark to the small hours?
On paper this is the strongest runtime claim in the group, and magnesium construction plus IP65 sealing is the right combination for a sit in wet brush. Expect the claim to soften with continuous video recording, and note the weight becomes noticeable after two hours, so a neck strap matters more here than with the pocket-sized units.
9. Pulsar Axion Compact XQ19 – Best Sensitivity in Warm Hog Season
Pulsar Axion XQ19 Compact Thermal Monocular, 384×288 Sensor
384x288 17um sensor NETD under 18mK
19mm f/1.0 lens with 19.5 degree FOV
640x400 AMOLED
8.8 ounces IPX7
Pros
- 384x288 with sub-18mK NETD is rare at this tier
- AMOLED display gives deeper blacks and brighter whites
- Large field of view helps locate subjects in dense vegetation
- Removable APS3 battery and app support for long sessions
- Five year limited warranty
Cons
- Menu system is more complicated than single-button palette switching
- Display appears smaller than some competing monocular eyepieces
- One buyer reported a battery that arrived dead and would not hold a charge
Warm Southern hog season is where thermal gets hard, and this is the optic built for it. The 384×288 uncooled microbolometer with NETD under 18mK is the best sensitivity figure in this roundup, and in humid, warm-ambient conditions it is the difference between a clear hog shape and a warm smudge.
The 19mm f/1.0 lens is the other half of that story. A fast aperture gathers heat efficiently, which is why the 640×400 AMOLED display can show deep blacks and bright whites through fog, dusk and thick brush. The 19.5 degree field of view is large for a handheld, helping you locate and hold a subject in dense vegetation.
At 8.8 ounces with an IPX7 rating and a five year limited warranty, it is light enough to carry all night and backed by warranty coverage that forum readers repeatedly single out as a real differentiator. Photo and video recording with a companion app covers documentation, and 1.5x to 6x magnification lets you scan wide then zoom to classify.
Two honest downsides. The menu system is more complicated than single-button palette switching, which is friction every time you want to change view quickly in the dark, and the eyepiece appears smaller than some competing monoculars. Review volume is also the thinnest in this roundup at 40 reviews, so the long track record that buyers chase in this category is not there yet.
Why does NETD matter so much in warm weather hog season?
Because the background is closer in temperature to the animal. On a cold night, a hog stands out dramatically. On a warm, humid night with sun-warmed rock and bare ploughed soil, the difference between hog and background shrinks, and only a highly sensitive sensor resolves it. Under 18mK is the number to want for July hogs in the South.
Is the f/1.0 aperture worth more than extra resolution?
For hog hunting, likely yes. Focal length and aperture determine how much heat the sensor actually receives, and sensor resolution only helps if light arrives. In the warm, damp conditions where hog season actually happens, the fast aperture and low NETD do more for usable identification range than a step up in pixel count would.
10. GOYOJO G215 Thermal Monocular – Sharper Than the G210
GOYOJO G215 Thermal Imaging Monocular for Hunting, 256×192 (50Hz) Infrared Night Vision Telescope, 15mm Focal Lens Thermal Scopes for Outdoor Night Vision Camera Telescope
256x192 12um detector at 50Hz
15mm lens with 11.5 degree FOV
4x zoom
replaceable battery over 6 hours
Pros
- 15mm lens gives better long-range focus and clarity than the 10mm G210
- 50Hz refresh keeps moving hogs and deer trackable
- Replaceable batteries and WiFi sharing for hunting partners
- Compact and light enough to carry in a jacket pocket
- Clear on even small animals such as mice at fair distance
Cons
- SD cards are not supported so storage is fixed at 16GB
- Brightness setting can revert to default after use
- WiFi connection needs troubleshooting with the app
The G215 is the G210 with a longer lens, and reviewers comparing the two say exactly that: better clarity and front focus at longer range from the 15mm optic. Where the G210 is a wide brush tool, the G215 reaches a little further down a sendero before detail gives out.
The 50Hz refresh keeps moving hogs and deer trackable across a field sweep, six palettes including White-Hot, Black-Hot, Red-Hot, Rainbow, Iron-Red and Glimmer are available, and WiFi app control lets you share the view live with a partner. It is also compact enough for a jacket pocket, which keeps it in the bag for scouting trips as well as hunts.
Owners note it stays clear on very small animals such as mice at fair distance, which is a good sign for piglets working the edge of a field. The replaceable battery gives over 6 hours of continuous operation, and USB-C keeps charging simple.
The catch is that narrowing from 10mm to 15mm also narrows the field of view to 11.7 degrees, so you cover less ground per sweep and will work the optic harder on close brush. Storage is fixed at 16GB with no SD card support, the brightness setting can revert to default after use, and the app connection needs troubleshooting. Detection and recognition are quoted at 1417 meters and 254 meters respectively, which are controlled-condition figures rather than field promises.
Should you pick the G210 or the G215?
Go G210 if your season is feeders and thick cover where the wide 17.5 degree view keeps a whole group in frame. Go G215 if you spend time on trails and open senderos and want more shape on distant animals. Both share the same replaceable battery approach and the same app, so the decision is purely about field of view versus reach.
How should you treat those long range figures?
As best case, not as a plan. Treat 254 meters of recognition as a controlled-condition number, and plan your shots on what owners actually report rather than on the specification. For hogs, that means working up to about 150 yards with confidence and treating anything beyond as a bonus.
Thermal vs Night Vision for Hog Hunting
Thermal wins for hog hunting, and the reason is specific to the quarry. Hogs give off strong, consistent heat signatures that show through brush and light cover, whereas night vision needs ambient light and is easily overwhelmed by reflective eyeshine at close range in open country.
Night vision amplifies available light, which means it works well under a moon high in the sky or a sky with real starlight and it gives you natural colour, depth perception and a wide field of view. The problem is that the same sensitivity produces glare from a flashlight, headlight or moonlit water, and a hog at 30 yards in open country is a wall of eyeshine rather than an animal.
Thermal inverts the problem. It needs no light at all, it ignores eyeshine entirely, and a 15mm f/1.0 lens can separate a hog from a warm background at ranges where night vision simply shows a bright blob. What thermal gives up is depth and context: a monochrome heat image does not tell you how far away something is, which is exactly why a laser rangefinder is worth having.
For deer, elk and turkeys, night vision still has real advantages because you are identifying shape and antler detail. For hogs, the animal is large, dense and often moving through cover, which is the exact situation where thermal wins.
If your hunting is mixed, pairing tools makes sense. Our guide to the best hunting backpacks for elk hunting covers carrying a full setup over rough ground.
Monocular, Scope, Clip-On, or Binocular?
Buy a monocular first. It is the only one of the four that lets you find game, identify it, count it, track a wounded animal and confirm a recovery, and it does all of that without ever putting a rifle on an unidentified animal.
A thermal scope is for taking the shot. It is the correct tool once you are on a target, but it is a poor spotting scope because you have to shoulder a rifle to look through it, and it is useless for tracking a wounded hog off the shoulder of a boar.
A clip-on thermal sits behind a conventional day scope and gives you thermal capability without replacing your glass, which makes it an excellent second purchase. It costs more, adds weight to the rifle and involves more setup, so it makes sense once the monocular has proven the habit.
A thermal binocular is the same image in two eyes at once, which is genuinely easier on the eyes and better for scanning wide. The trade is weight, cost and the fact that most hunters end up carrying a monocular anyway because one hand free is worth more.
How to Choose a Thermal Monocular for Hog Hunting
A thermal monocular is a handheld, single-eye infrared device that measures the temperature difference between a warm animal and a cool background and renders it as a contrast image. That is why sensor resolution and NETD sensitivity determine whether a hog is a clear shape or a smudge, and why palette choice matters more than hunters expect.
Buy on identification range at your actual shooting distance, not on the detection number. Every device in this roundup advertises detection in the hundreds of meters; almost none of them identify a hog reliably at those distances. Work back from the range you hunt instead.
Sensor resolution. 256×192 is the entry class and works well for hogs inside about 150 yards. 384×288 is the sweet spot and is what most hog hunters should target. 640-class sensors add real detail at 200 yards and beyond, but the forum consensus is blunt about it: if you are just pig hunting, 384 is just fine. Hogs are large, dense heat sources, which makes them far less demanding to identify than a deer at the same distance.
NETD and warm-season sensitivity. NETD is thermal sensitivity measured in millikelvins, and lower is better. Under 25mK is a strong figure and under 18mK is excellent. It matters most in the warm, humid months when hog season actually happens in Texas, Oklahoma, Arkansas and the Southeast, because the background sits closer in temperature to the animal and the margin for error shrinks.
Lens focal length and field of view. A 10mm to 13mm lens gives a wide view that suits feeders, thick brush and fast-moving groups, and it is what most hog hunting needs. A 15mm to 25mm lens reaches further down a trail and costs you field of view. A 35mm or 50mm lens is a long-range tool, not a hog tool, unless you are counting a distant sounder in open country. Map it like this: under 100 yards at a feeder means wide, 150 yards of brush work means mid, and 200 to 300 yard sounder work means reach.
Detection vs recognition vs identification. This is the single most misunderstood spec in the category, and the most citable correction we can offer. Detection means you see something warm. Recognition means you know it is an animal. Identification means you can tell what it is and judge size and sex. As a rough rule, recognition lands near a quarter of the advertised detection figure and identification near an eighth. A device advertising 853 yards of detection is realistically a recognition device at a bit over 200 yards and an identification device at roughly 100. Treat those as the numbers you plan around.
Refresh rate. 50Hz or 60Hz keeps moving hogs trackable and reduces the lag that makes you second-guess a shot. 25Hz is usable and noticeably less smooth, which is fine for a stationary sit at a feeder and frustrating when a sow and eight piglets are moving across a road. Digital zoom adds no detail, so treat a high zoom ratio as a convenience rather than a range figure.
Battery, rangefinder and build. Plan for a session that runs from before dark to the small hours. A claimed 8 to 12 hours covers most nights, but carry a spare cell or a power bank, and prefer standard replaceable cells over proprietary packs where you can, since a partner can share yours. A built-in laser rangefinder is genuinely useful because thermal gives no depth cue, and ranging before you commit beats guessing. IP67 or IPX7 sealing and a metal housing matter more in a wet hog season than a higher-resolution display does.
Where each price bracket fits. Entry-level handhelds cover feeder and brush work inside 150 yards and are the right first thermal for most people. The middle bracket, roughly the sub-thousand-dollar range that most buyers land in, is where the 384×288 sensors and fast apertures start, and it is the sweet spot for hog hunting. Premium pricing buys 640-class resolution, better optics and longer warranties, which pays off on long-range game more often than on pigs.
Check the law before you buy. Restrictions on night vision and thermal devices are far more common for deer, elk and turkey than for hogs, and they vary by state. A device that is completely legal for a hog season can be illegal three counties over, and rules change. Verify with your state wildlife agency before you travel, and keep the paperwork that came with the device.
Working a Sounder at Night With a Monocular
Let the unit acclimate. Give it several minutes to adjust to cold air before you judge the image, and do not panic at the momentary blur that happens while it calibrates.
Scan in overlapping strips rather than sweeping randomly. Pick a boundary such as a fence line or a creek bed, sweep the strip, then back up roughly one third of the strip width and sweep again. Hogs push along edges, and a systematic strip will find the edge-followers that a random sweep misses.
Use two palettes, and this is the technique tip that helps most. White hot is for detection: pick the brightest spot in the frame and centre it. Black hot is for identification, because the outline and internal shading of a hog read more clearly once you have already found it. Switching after detection is faster than trying to identify a shape in a high-contrast detection view.
Know your false positives before you move on them. Sun-warmed rock, bare ploughed soil, a vehicle that just parked, a warm building and water all produce heat signatures. In warm season you will see more of them, which is exactly why sensitivity matters. A signature that does not move after a minute is probably not a hog.
Range before you commit. If your device has a laser rangefinder, put a number on the animal and check that your zero and your dope are built for that distance before you shoulder the rifle. If it does not, a rangefinder is the first accessory worth adding, and it costs far less than a mistake at 180 yards.
Count the group, not just the target. Note sows, piglets and any boar that turns away from you, and treat the count as a reason to hold fire. A boar that is not turned away often means the group has not moved off, and patience is the whole game.
Track wounded hogs with the monocular, not the scope. Once you have shot, a mounted optic is useless because the animal is moving and you need both hands. Get to the trail, pick up the sign, and use the handheld to work the fresh trail through thick cover. A thermal binocular is the single most useful upgrade at that moment, which is why some hunters carry one for recovery and a monocular for scanning.
Frequently Asked Questions
What is the best thermal optic for hog hunting?
A handheld thermal monocular is the best first thermal optic for hog hunting, because it lets you find, count, identify and track hogs without shouldering a rifle. Look for a 384×288 sensor, NETD sensitivity under 25 mK, a 10mm to 25mm lens, 50Hz refresh, replaceable batteries and a laser rangefinder. For feeder work inside 100 yards, prioritise a wide field of view over magnification.
Is night vision or thermal better for hog hunting?
Thermal is better for hog hunting. Hogs produce strong, consistent heat signatures that show through brush and light cover, and thermal ignores eyeshine entirely. Night vision needs ambient light, gets overwhelmed by flashlights and headlight glare, and turns a close hog in open country into a wall of reflective eyeshine. Night vision still wins for identifying antlered game in good moonlight.
How far can a thermal monocular actually identify a hog?
On a 384×288 handheld with a 15mm to 25mm lens, plan on reliable hog identification to about 150 yards in good conditions, and treat 200 to 300 yards as a bonus that depends on contrast, weather and how well you scan. Detection figures in the hundreds of meters are controlled-condition numbers. A working rule is that recognition lands near a quarter of advertised detection and identification near an eighth.
Is 384 or 640 better for hog hunting?
384 is better for hog hunting in most cases. Hogs are large, dense heat sources, so a 384×288 sensor identifies them cleanly well inside the range that a 640 sensor adds detail for. Buy 640 only if you also hunt deer, elk or varmints at long range, or if your hunting is mostly wide-open sounder work at 200 to 300 yards. A low NETD value under 25 mK matters more for warm-season hogs than resolution does.
Can you zero a thermal scope in daylight?
Yes, but not in direct sunlight on a hot day. A thermal scope needs a temperature difference between the target and the background, so a person in summer sun can be nearly invisible to it. Zero early in the morning, at dusk, or on an overcast day, and use a target with clear thermal contrast such as bare cardboard or a cold vehicle. Zero at the distance you shoot, then confirm at another range before hunting.
How long do thermal monocular batteries last on a night hog hunt?
Most handhelds in this roundup are claimed at 6 to 12 hours per charge, and continuous video recording or heavy zoom will pull that down. For a session running from before dark to the small hours, one full charge is usually enough. Carry a spare cell or a power bank regardless, and prefer standard replaceable cells such as 18650 over proprietary packs so a hunting partner can share spares.
Final Verdict
The best thermal monoculars for hog hunting are not the ones with the longest detection numbers, they are the ones that match the range you shoot and the season you hunt. The TOPDON TS004 is our overall pick for its 50Hz smoothness, long runtime and the deepest owner base in this roundup. The AGM Rattler V2 carries the highest rating and the best-equipped feature set, though it is a riflescope rather than a handheld.
For warm, humid hog season, the Pulsar Axion Compact is the one we would carry south, because sub-18mK sensitivity and a fast f/1.0 aperture do more for identification in low contrast than extra pixels would. For open-ground sounder work at 200 to 300 yards, the RIX Pocket K3 gives you real 384 detail. For feeders and thick brush, the GOYOJO G210 wide field of view and standard replaceable cell make it hard to argue with.
Whichever you pick, buy it for identification range at 150 yards, let it acclimate before you judge the image, and check your state rules before you load the rifle. If you want a matched daytime setup for the shot itself, our best crossbows for deer hunting reviews cover the rest of the kit.