OpticVerdict Independent optics reviews
Search OpticVerdict

The best thermal scopes in 2026

By the OpticVerdict Editorial Team.
Research-based roundup · Updated 2026-08-19

Our verdict for 2026: the AGM RattlerV2 35-384 (around $1,800) is the best thermal scope overall, with a 384x288 sensor and the sharpest identification here. The AGM RattlerV2 25-256 (around $1,000) is the best value, a sub-$1,000 pick most night hunters should start with, and the AGM RattlerV2 19-256 (around $800) is the budget entry and the best scanner. The ATN Thor LTV 5-15x Gen 5 (around $1,750) is the alternative if you want out of the AGM ecosystem.

Between them, the four picks carry 117 verified owner reviews on OpticsPlanet. Prices verified August 30, 2026; confirm the current price on the retailer page.

A thermal scope shows an animal's heat signature in total darkness, which is why it has become the tool of choice for night hog and predator hunting. You do not need to spend $3,000 to get a capable one. All four picks below are built for real night hunting inside a few hundred yards, from a budget scanner at around $800 to a 384-resolution optic that identifies targets farther out.

How these picks were made: a research-based roundup comparing published specifications, sensor resolution and sensitivity, included mounts and batteries, verified owner reviews and pricing on OpticsPlanet. Scores are our editorial opinion, not a hands-on test of every model, and owner ratings are shown attributed to their source. Confirm current price on the retailer page. See how we evaluate.

In this guide
  1. AGM RattlerV2 35-384 3-24x35mm - Best overall
  2. AGM RattlerV2 25-256 25mm - Best value
  3. AGM RattlerV2 19-256 19mm - Best budget
  4. ATN Thor LTV 5-15x Gen 5 - Best ATN alternative
  5. How to choose a thermal scope
  6. FAQ

Quick comparison

CategoryPickSpecPrice
Best overall AGM RattlerV2 35-384 3-24x35mm 3-24x · 384x288 around $1,800 Check price
Best value AGM RattlerV2 25-256 25mm 3.5-28x · 256x192 around $1,000 Check price
Best budget AGM RattlerV2 19-256 19mm 2.5-20x · 256x192 around $800 Check price
Best ATN alternative ATN Thor LTV 5-15x Gen 5 5-15x · 320x240 around $1,750 Check price
AGM RattlerV2 35-384 3-24x35mm thermal imaging rifle scope with quick-detach mount, black

Best overall: AGM RattlerV2 35-384 3-24x35mm

4.5/5 our editorial score

5.0/5 from 29 verified reviews on OpticsPlanet

3-24x · 35mm germanium lens · 384x288 sensor · sub-20 mK NETD · 50 Hz · 10 reticles · QD mount · Wi-Fi app · 11 hr rechargeable

around $1,800exact price on OpticsPlanet

Check price on OpticsPlanet

This is the thermal to buy when you want the sharpest identification here, and it is the one to anchor a serious night-hunting rig. Its edge is the 384x288 sensor paired with a sub-20 mK NETD rating, the highest sensitivity AGM offers, so warm bodies separate cleanly from a cool background and you can tell a hog from a stump farther out than the 256-resolution picks allow. The 35mm germanium lens and 3x base magnification give real reach (AGM rates detection to 1800 yards), and it ships complete with a custom ADM quick-detach mount that returns to zero, two rechargeable batteries good for 11 hours, a charger and a case. Add 10 reticles, multiple caliber zero profiles, shot-activated recording and a Wi-Fi app, and it is the do-it-all pick. The AGM RattlerV2 series is featured in Outdoor Life's 2024 Best Budget Thermal Scopes guide (this higher-magnification model is recommended for predator hunters; the guide's Editor's Pick went to a lower-tier sibling).

AGM RattlerV2 35-384 sight-in via OpticsPlanet: the 384x288 thermal sensor, 10 reticle options and the custom ADM quick-detach mount.

Pros

  • 384x288 resolution with a sub-20 mK NETD rating, the highest sensitivity in the Rattler line, for the clearest target identification of any pick here
  • A 35mm germanium lens and 3x base magnification give real reach, with AGM-rated detection out to 1800 yards
  • Ships complete: a custom ADM quick-detach mount that returns to zero, two rechargeable batteries (11 hours), a charger and a carry case
  • 10 reticle options with multiple caliber zero profiles, shot-activated recording and a Wi-Fi app for a phone

Cons

  • The most expensive pick here, the trade for the 384 sensor and higher magnification
  • Magnification above the 3x base is digital zoom, so the image softens as you zoom in, as with all scopes in this class
  • The proprietary lithium-ion battery has no AA or CR123 fallback, so you carry spares rather than buying cells in the field
  • The 3x base magnification gives a narrower field of view than the 19-256, so it is a shooter first and a wide scanner second

Best for: predator and hog hunters who want the sharpest 384-resolution identification at higher magnification for shots out to a few hundred yards at night. Scanner-only buyers or the tightest budgets should drop to the 25-256 or 19-256.

Key specifications
ManufacturerAGM Global Vision
Magnification3-24x (3x base, digital zoom)
Objective35 mm germanium
Sensor resolution384x288 pixels
NETD20 mK (sub-20)
Refresh rate50 Hz
Detection rangeUp to 1800 yd (AGM rated)
BatteryLithium-ion rechargeable, 11 hr, x2 included
MountCustom ADM quick-detach
Weight1.13 lb
WarrantyAGM manufacturer warranty

“The AGM rattler v2 is a very nice scope for the money. I had been looking at several different options and decided on the rattler v2 because of the options it has, the convenience of the large buttons on top, and the price range. I like this scope so much I will definitely be purchasing another one for my next setup.”

T.J., verified owner (IA) via OpticsPlanet
AGM RattlerV2 25-256 25mm budget thermal imaging rifle scope, black

Best value: AGM RattlerV2 25-256 25mm

4.5/5 our editorial score

4.8/5 from 33 verified reviews on OpticsPlanet

3.5-28x · 25mm germanium lens · 256x192 sensor · 35 mK NETD · 50 Hz · 10 reticles · QD mount · Wi-Fi app · 11.5 hr rechargeable

around $1,000exact price on OpticsPlanet

Check price on OpticsPlanet

This is the best value in thermal right now, and the pick most night hunters should start with. For under $1,000 you get a 256x192 sensor, a 50 Hz refresh rate (double the 25 Hz of the original Rattler it replaces) and a 25mm germanium lens, which owners consistently find is plenty for hogs and coyotes inside 200 to 300 yards. Owners call it a "working man's thermal": it comes with two rechargeable batteries for 11.5 hours, a quick-detach mount that holds zero, and a simple five-button layout that even a first-timer runs effortlessly. It carries 33 reviews at 4.8 stars, more than the 384 model, a strong signal of real-world satisfaction. It is the value default: enough thermal to hunt seriously without crossing $1,000.

AGM RattlerV2 25-256 comparison via OpticsPlanet: the 256x192 budget thermal sensor, 3.5x base magnification and 50 Hz refresh rate.

Pros

  • Under $1,000 with a 256x192 sensor and a 50 Hz refresh rate, double the 25 Hz of the original Rattler it replaces
  • Owners repeatedly call it a "working man's thermal", easy to run for beginners and proven on hogs and coyotes inside 200 to 300 yards
  • Two rechargeable batteries (11.5 hours), a quick-detach mount that holds zero, and a case are all in the box
  • The most-reviewed pick here at 4.8/5 across 33 owners, plus 10 reticles, zero profiles and a Wi-Fi app

Cons

  • The 256x192 sensor gets grainy as you climb past the 3.5x base into digital zoom, an honest owner note
  • The 3.5x base magnification is a little high for walking and scanning, where the wider 19-256 is easier
  • Not built for long-range night work; owners keep shots inside about 300 yards
  • A proprietary rechargeable battery, so you carry spares rather than buying cells in the field

Best for: the best value entry into thermal for night hog and coyote hunting inside about 300 yards, and for beginners or a buddy scope. Step up to the 35-384 for sharper identification and reach, or save with the 19-256.

Key specifications
ManufacturerAGM Global Vision
Magnification3.5-28x (3.5x base, digital zoom)
Objective25 mm germanium
Sensor resolution256x192 pixels
NETD35 mK
Refresh rate50 Hz
Detection rangeUp to 1250 yd (AGM rated)
BatteryLithium-ion rechargeable, 11.5 hr, x2 included
MountCustom ADM quick-detach
Weight1.08 lb
WarrantyAGM manufacturer warranty

“Twice as good as the original 25/256 for the same price. Battery life is great, image quality is significantly better than the original, and all of the features are an improvement. This thermal is perfectly suited for hunting hogs/coyotes within 200-300 yards.”

Verified owner (OK) via OpticsPlanet
AGM RattlerV2 19-256 19mm budget thermal imaging rifle scope, black

Best budget: AGM RattlerV2 19-256 19mm

4.0/5 our editorial score

4.9/5 from 24 verified reviews on OpticsPlanet

2.5-20x · 19mm germanium lens · 256x192 sensor · 35 mK NETD · 50 Hz · wide 49 ft FOV · IP67 · QD mount · 11.5 hr rechargeable

around $800exact price on OpticsPlanet

Check price on OpticsPlanet

This is the cheapest honest way into thermal, and the best dedicated scanner or buddy scope here. It shares the 256x192 sensor and 50 Hz refresh of the 25-256 but drops to a 19mm lens and a lower 2.5x base magnification, which buys the widest field of view here (49 feet at 100 yards), exactly what you want for sweeping a field to find heat before you shoulder a magnified scope. Owners rate its image quality as good as or better than an ATN Thor 4 and praise it for never glitching, and it still ships with two rechargeable batteries, a quick-detach mount and an IP67 weather rating, at 1.06 lb the lightest pick. Be realistic about the range: the small lens and 256 sensor mean detail fades past about 150 yards, so treat it as a close-range and scanning tool, not a long-shot optic.

Pros

  • The lowest price here, the honest entry point into thermal
  • The widest field of view of any pick here (49 feet at 100 yards) and the lowest 2.5x base magnification, so it is the best scanner and buddy scope
  • Owners rate its image as good as or better than an ATN Thor 4 and praise it for never glitching
  • Two rechargeable batteries, a quick-detach mount and an IP67 weather rating; at 1.06 lb the lightest pick

Cons

  • The 19mm lens and 256x192 sensor limit usable range; owners report detail fading past about 150 yards
  • Best for close-range and scanning, not long-range night shooting
  • Magnification above 2.5x is digital zoom, so it softens as you zoom in

Best for: a first thermal on a budget, a dedicated scanner, or a buddy scope for close-range hog and varmint work inside about 150 yards. Step up to the 25-256 or 35-384 for more reach and identification.

Key specifications
ManufacturerAGM Global Vision
Magnification2.5-20x (2.5x base, digital zoom)
Objective19 mm germanium
Sensor resolution256x192 pixels
NETD35 mK
Refresh rate50 Hz
Field of view49 ft at 100 yd (widest here)
BatteryLithium-ion rechargeable, 11.5 hr, x2 included
SealingIP67 waterproof
Weight1.06 lb
WarrantyAGM manufacturer warranty

“This is a nice entry level thermal scope. It has high screen resolution, good refresh rate. It has as good or better image quality as a Thor 4. It has never glitched. Return to zero mount and all accessories are included in a nice carry case. It is no wonder these are some of the highest rated thermals for entry level units.”

Myles Smith, verified owner (AR) via OpticsPlanet
ATN Thor LTV 5-15x Gen 5 thermal imaging rifle scope, black

Best ATN alternative: ATN Thor LTV 5-15x Gen 5

4.0/5 our editorial score

4.5/5 from 31 verified reviews on OpticsPlanet

5-15x · 35mm objective · 320x240 sensor · 60 Hz · 90mm eye relief · standard 30mm rings · onboard video · IP67 · 9 hr rechargeable

around $1,750exact price on OpticsPlanet

Check price on OpticsPlanet

This is the pick if you want out of the AGM ecosystem, and it comes with a deep owner-review base: 31 reviews at 4.5 stars, including long-term reports. It is the lightest scope in ATN's Thor line, runs a faster 60 Hz refresh than the AGMs, and its very long 90mm eye relief plus standard 30mm ring mounting mean it goes on almost any rifle, crossbow or air rifle without a proprietary mount. It records video straight to a microSD card and is backed by ATN's 3-year warranty. Owners are emphatic about what it does: one reports 65 pigs taken with it, saying it "makes the pigs pop out in total darkness way better than night vision" with no white-out. Be clear-eyed on the trade: its 320x240 sensor resolves less detail than the AGM 35-384's 384x288 at a similar price, so you are buying the ATN feature set and track record rather than the sharpest image.

ATN Thor LTV 5-15x Gen 5 overview via OpticsPlanet: the lightest scope in ATN's Thor line, with a 60 Hz refresh rate and onboard video recording.

Pros

  • A deep, long-term review base at 4.5/5 across 31 owners, including an owner who logged 65 pigs with it
  • A faster 60 Hz refresh rate than the 50 Hz AGM picks, for smoother motion while scanning
  • A very long 90mm eye relief and standard 30mm ring mounting, so it fits almost any rifle, crossbow or air rifle with no proprietary mount
  • Records video to a microSD card, weighs in as the lightest of ATN's Thor line, and carries a 3-year ATN warranty

Cons

  • The 320x240 sensor resolves less detail than the AGM RattlerV2 35-384's 384x288 at a similar price
  • The heaviest pick here at 1.4 lb and 11.5 inches long
  • Owners report needing high-rise rings or spacers for a comfortable cheek weld
  • There is a learning curve; several owners needed time (or ATN's training) to get comfortable with the menu

Best for: hunters who want ATN's feature set (60 Hz, a long 90mm eye relief, standard 30mm rings and onboard video) on a rifle, crossbow or air rifle. If image detail matters most at this price, the AGM 35-384 resolves more.

Key specifications
ManufacturerATN
Magnification5-15x
Objective35 mm
Sensor resolution320x240 pixels
Display1280x720
Refresh rate60 Hz
Eye relief90 mm
Detection rangeUp to 1510 m (ATN rated)
BatteryLithium-ion rechargeable, 9 hr, x2 included
MountStandard 30 mm riflescope rings
SealingIP67 waterproof
Weight1.4 lb
WarrantyATN 3-year

“This scope has been excellent, it really makes the pigs pop out in total darkness way better than night vision. I have killed 65 pigs since I got it. Another thing I like is there is no white out like night vision so you have a chance to make several kills. This scope is so simple to use, not too much BS like my night vision had. The battery life is awesome, I have only charged it three times since I started using it.”

Hbankst, verified owner (MS) via OpticsPlanet

How to choose a thermal scope

A few things matter more than the headline magnification number:

Comparing the three AGM models directly? See which AGM Rattler V2 to buy. Hunting a specific way? See our best thermal scope for coyote hunting and best budget thermal scope (under $1,000). Want a handheld scanner instead of a weapon-mounted optic? See our best thermal monoculars or, to scan with both eyes, our best thermal binoculars. Already run a good day scope and want to add night capability without giving it up? See our best thermal clip-on. Prefer a detailed image and daytime use over pure heat detection? See our best night vision scopes. Deciding on the technology? Read thermal vs night vision. New to zeroing an optic? See how to sight in a rifle scope. Hunting by day too? Compare our best rifle scopes and best hunting rangefinders.

FAQ

What is the best budget thermal scope?

The AGM RattlerV2 25-256 25mm is the best budget thermal scope for most night hunters. Under $1,000 it gives a 256x192 sensor, a 50 Hz refresh rate and detection of hogs and coyotes inside 200 to 300 yards, ships with two rechargeable batteries and a quick-detach mount, and carries 4.8 stars from 33 owners. If you want to spend even less, the RattlerV2 19-256 is the entry point and the best scanner, and it is the cheapest thermal scope we rank; step up to the 35-384 for a sharper 384-resolution image at roughly twice the price of the budget model. The pick blocks below carry the current figure for each.

How much does a good thermal scope cost?

Less than you would expect, and the tiers are clear. A genuinely usable 256-resolution thermal rifle scope starts under $1,000, which is where both of our budget picks sit, and a sharper 384-resolution optic costs roughly twice that. Above them, premium thermals from ATN, Pulsar and others run to more than $5,000, buying higher resolution, longer detection and built-in rangefinders. For night hog and predator hunting inside a few hundred yards you do not need to cross the $2,000 mark, which is why every pick on this page sits under it.

What thermal resolution do you need for hunting?

A 256x192 sensor, as in the RattlerV2 19-256 and 25-256, is enough to detect and identify hogs and coyotes inside roughly 200 to 300 yards, which covers most night hunting. A 384x288 sensor, as in the RattlerV2 35-384, resolves finer detail and lets you identify targets farther out, so it is worth the extra cost if you shoot at longer range or want the clearest possible image. Higher resolution and a lower NETD (sensitivity) number both improve how cleanly a warm animal separates from the background.

Can you hunt coyotes and hogs with these thermal scopes?

Yes, and that is exactly what owners use them for. Verified owners report taking hogs and coyotes with all four picks, typically inside 200 to 300 yards, with the 384-resolution 35-384 reaching a little farther, the wide-field 19-256 working best as a close-range and scanning tool, and one ATN Thor LTV owner logging 65 pigs. Thermal shows an animal's heat signature in total darkness, so it outperforms night vision for detecting game in the dark. Always confirm night-hunting and thermal-optic regulations for your state and species before you hunt.

OpticVerdict Editorial Team · optics reviewers at OpticVerdict

Every award, spec and superlative in this guide is checked against a primary source before it is published, and every rating we cite is shown attributed to where it comes from. Read how we evaluate or learn more about this site.

Source-verified claims Attributed ratings only Method disclosed on every page

Related: best rifle scopes · best hunting rangefinders · best red dot sights.