AGM Thermal Monocular: Every Model Compared (2026)

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An AGM thermal monocular is a handheld heat-imaging device from AGM Global Vision, the American manufacturer that has done more than anyone to push thermal prices down since 2019. AGM builds the widest handheld range of any brand we carry and backs it with a five-year transferable warranty, the longest in the category.

This guide compares every current AGM thermal monocular, explains the naming, and is honest about which models are worth buying and which have been superseded. We stock AGM alongside Pulsar, ThermTec, HIKMICRO, and ATN, so we have no reason to oversell it.

Browse the AGM range or the full thermal monocular category.

Why AGM matters in thermal

AGM Global Vision entered the market properly in 2019 and made a substantial impression at SHOT Show 2020. The timing was ideal: FLIR withdrew from consumer hunting sales in January 2020, leaving a gap just as AGM arrived with aggressive pricing.

Three things define the brand.

Price pressure. AGM’s Rattler and Taipan lines put usable thermal into the hands of buyers who previously could not afford it. Much of the price drop across the entire category over the past five years can be traced back to that competition.

A five-year transferable warranty. The longest anyone offers and transferable to a second owner. On a device costing well over a thousand euros, that is worth real money, and it supports resale value.

Range breadth. AGM makes handhelds, clip-ons, riflescopes, and fusion devices across almost every price point.

The weakness is the consistency of generation. AGM iterates quickly, and older models sit on shelves next to current ones at similar prices with meaningfully different specifications. That trips up more buyers than anything else about the brand.

Decoding AGM model names

Element	Meaning
Asp	Older observational handheld line, 17µm sensors
Taipan / Taipan V2	Compact affordable handheld line, 12µm
Sidewinder	Premium handheld line, best sensitivity
Seeker	Handheld observational line
Fuzion / Fusion	Thermal blended with a visible channel
Rattler	Clip-on and riflescope line, not handheld
TM	Thermal monocular
First number	Objective lens in millimetres, e.g. 19, 25, 35, 50
Second number	Sensor resolution, e.g. 256, 320, 384, 640
LRF	Built-in laser rangefinder
V2	Second generation

So an AGM Sidewinder TM35-640 is a premium handheld with a 35mm lens and a 640 sensor. A Taipan V2 19-384 is a second-generation compact with a 19mm lens and a 384 sensor.

That naming is genuinely more logical than most of the industry’s, once you know the pattern.

The AGM thermal monocular range compared

Model	Sensor	Pixel pitch	NETD	Lens	Notes
Sidewinder TM25-384	384×288	12µm	≤20 mK	25 mm	Premium, 64 GB, IP67, 50 Hz
Sidewinder TM35-384	384×288	12µm	≤20 mK	35 mm	Best sensitivity in the range
Sidewinder TM35-640	640×512	12µm	≤20 mK	35 mm	High-resolution premium
Sidewinder TM50-640	640×512	12µm	≤20 mK	50 mm	Longest reach
Taipan V2 19-384	384×288	12µm	Sub-20 to 35 mK	19 mm	Wide field, removable 18650
Taipan V2 25-384	384×288	12µm	Sub-20 to 35 mK	25 mm	Detection to ~1,250 m
Taipan V2 10-256	256×192	12µm		10 mm	Entry, very wide field
Asp TM35-384	384×288	17µm	<35 mK	35 mm F1.0	Older generation, 2.4x
Seeker 19-384	384×288			19 mm	Observational
Fuzion LRF TM35-384	384×288	12µm		35 mm	Fusion imaging plus LRF

AGM Sidewinder: the one to look at

The Sidewinder is AGM’s premium handheld and the model that changed how we think about the brand. A 12 µm detector at NETD ≤ 20 mK is genuinely competitive with anything at the price, paired with a 1024×768 OLED display, 64 GB of internal memory, a 50 Hz refresh rate, and IP67 sealing. Digital zoom runs 1x, 2x, 4x, and 8x, and the AGM Connect app handles sharing and control.

Sub-20mK is the specification that matters. It means the Sidewinder holds a usable image in fog, drizzle, and humidity, which is where cheaper devices collapse. Against a Pulsar Axion 2 XG35 at under 40 mK, the Sidewinder is the more sensitive device despite costing less.

If you buy one AGM thermal monocular, buy a Sidewinder.

AGM Taipan V2: the value pick

The Taipan V2 is the affordable compact, built around a 12µm 384×288 sensor with detection to roughly 1,250 m. AGM describes the series as offering some of the best image quality the company has produced.

Two practical upgrades over the original Taipan matter. First, a removable 18650 battery, which uses a cheap standard cell available anywhere rather than a proprietary pack. Second, a 90-degree tilt sensor that automatically blanks the display when the device is lowered, which meaningfully extends runtime in real use.

Sensitivity varies by variant between roughly sub-20mK and sub-35mK, so check the specific model rather than assuming. The 19mm version gives a wide field for close, brushy ground; the 25mm reaches further.

AGM Asp: superseded, but still sold

The Asp TM35-384 runs an older 17µm sensor at under 35mK behind a 35mm F1.0 lens, with 2.4x base magnification, a 1024×768 OLED display, and detection to roughly 780m. It was a decent device when it launched, and it still produces a usable image in cold, dry conditions.

It has been superseded. If an Asp and a Taipan V2 or Sidewinder are similarly priced, buy the newer one. The sensitivity difference is not marginal.

AGM Fuzion: thermal plus visible

Fuzion models blend a thermal channel with a visible-light channel into a single fused image rather than making you switch between them. For identification work that is genuinely useful, because thermal tells you something is there, and the visible channel helps tell you what. It is AGM’s clearest technical differentiator.

Our thermal binocular guide covers the wider multi-spectrum and fusion category.

AGM versus the competition

Model	Sensor	NETD	Standout	Warranty
AGM Sidewinder TM35-384	384 12µm	≤20 mK	64 GB, IP67, value	5 years
AGM Taipan V2 25-384	384 12µm	20-35 mK	18650 cell, tilt sensor	5 years
ThermTec Cyclone	640 12µm	<20 mK	255 g, 20 h, €899	Manufacturer
ThermTec Wild Pro	640 12µm	<15 mK	Best sensitivity, LRF	Manufacturer
Pulsar Axion 2 XG35	640 12µm	<40 mK	Build, software, resale	Manufacturer
HIKMICRO Lynx 3.0	256 / 384	Varies	From €329	Manufacturer

Where AGM wins. Warranty, straightforwardly. Five years of transferability is a genuine advantage that nobody else matches. The Sidewinder’s ≤20mK sensitivity is strong for the money, and the Taipan V2’s standard 18650 battery is cheaper to live with than proprietary packs.

Where AGM loses. Resolution at the price. AGM’s premium handhelds are largely 384 sensors, while a ThermTec Cyclone gives you a 640 sensor at under 20 mK for €899. Software polish also trails Pulsar’s Stream Vision 2 by a distance.

The honest summary. Buy AGM if warranty length and battery practicality matter to you, or if you want the Fuzion’s fused imaging. Buy ThermTec if you want more sensors per euro. Buy Pulsar if building and resale matter most. Our complete thermal monocular guide compares every brand in detail.

Which AGM thermal monocular should you buy?

The Sidewinder TM35-384 is the best AGM handheld for image quality at a sensible price. The ≤20mK sensor is the reason why.

Sidewinder TM50-640 if you need reach and resolution and the budget allows.

Taipan V2 25-384 if you want the value pick with a standard replaceable battery and you hunt at moderate range.

Taipan V2 19-384 if you work in woodland and close cover where a wide field is out of reach.

Fuzion LRF if identification matters as much as detection and you want ranging built in.

The Asp is not recommended unless it is heavily discounted. The 17µm sensor, with a sensitivity of under 35mK, is a generation behind.

Buying an AGM: what to check

Confirm the generation. This is the single most important check with AGM. Older Asp and first-generation Taipan stock sits beside current Sidewinder and Taipan V2 at similar prices with very different sensitivities. Please read the exact model code, not the family name.

Read the NETD figure for the specific variant. Taipan V2 sensitivity varies between models.

Check what battery it uses. The 18650 cells on Taipan V2 are cheap and available anywhere. Confirm whether a spare and charger are included.

Confirm the warranty transfers. An AGM’s five years are transferable, which supports resale, but verify with your dealer.

Buy from an authorized dealer in your customs area so the warranty is honored and you avoid import duty. Our thermal monocular buying guide covers these topics.

Frequently asked questions

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Browse the AGM range and compare it against ThermTec, Pulsar, and HIKMICRO, or read our complete thermal monocular guide. Also see the handheld buyer’s guide, thermal monoculars for sale, and comparisons of thermal scopes, clip-ons, and binoculars.