ATN's wide-angle 384×288 monocular: 1.25–5x, 16° field of view, 60 Hz, HD recording and an 18-hour internal battery.
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ATN OTS 4T 384 1.25-5x vs Guide TK431
Two thermal monoculars compared on the makers' own figures. Rows in bold are where they differ; a dash means that maker does not publish the figure.
Guide's TrackIR-series 400×300 thermal monocular with a 35 mm F1.2 lens, 1280×960 display and a swappable 18650 cell. Discontinued.
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Specification side by side
| ATN OTS 4T 384 1.25-5x | Guide TK431 | |
|---|---|---|
| Technology | Thermal | Thermal |
| Sensor | 384×288 | 400×300 |
| Magnification | 1.3–5x | — |
| Digital zoom | up to 4x | — |
| Detection range | 686 m | — |
| Field of view | 16° | 11.1° |
| Display | 1280x720 | FLCOS 1280x960 |
| Recording | photo and video | photo and video |
| Wi-Fi / app | yes | yes |
| Battery life | up to 18 h | up to 5 h |
| Battery | built-in Li-ion | removable 18650 Li-ion |
| Weight | 850 g | 485 g |
| Pixel pitch | — | 17 µm |
| NETD | — | ≤30 mK |
| Lens | — | 35 mm |
| Launched | — | 2022 |
Sources: ATN OTS 4T 384 1.25-5x (spec page); Guide TK431 (spec page). Detection ranges are for a 1.8 m object under each maker's own test conditions and are not directly comparable between brands.
Full pages: ATN OTS 4T 384 1.25-5x · Guide TK431 · all thermal monoculars in stock today
Specifications are the manufacturers' published figures. Prices are Amazon.co.uk at our last daily check. As an Amazon Associate we earn from qualifying purchases. More