A compact 384×288 thermal with a 19 mm lens, 13.6° field of view and a 10-hour swappable 18650 cell. No longer in production.
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Guide TD411 vs Nightfox Arctic
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.
Nightfox's head-mountable 1x thermal monocular: 256×192 at 30 mK, a 7 mm fixed-focus lens with a 24° field of view, 50 Hz, video recording, 9-hour 18650 cell.
£349.99cheapest tracked listing
Specification side by side
| Guide TD411 | Nightfox Arctic | |
|---|---|---|
| Technology | Thermal | Thermal |
| Sensor | 384×288 | 256×192 |
| Pixel pitch | 12 µm | 12 µm |
| NETD | ≤40 mK | ≤30 mK |
| Lens | 19 mm | 7 mm |
| Magnification | 1.4–5.6x | 1–4x |
| Digital zoom | up to 4x | up to 4x |
| Detection range | 800 m | 180 m |
| Field of view | 13.6° | 23.8° |
| Display | OLED 640x400 | AMOLED 410x502 |
| Wi-Fi / app | yes | — |
| Battery life | up to 10 h | up to 9 h |
| Battery | removable 18650 Li-ion | removable 18650 Li-ion 3500 mAh |
| Weight | 330 g | 280 g |
| Recognition range | — | 100 m |
| Recording | — | photo and video |
| Water resistance | — | IP65 |
| Launch RRP | — | £349.99 |
Sources: Guide TD411 (spec page); Nightfox Arctic (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: Guide TD411 · Nightfox Arctic · 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