The 25 mm model in InfiRay's current Eye III line: 384×288 at 12 µm, 25 mK, 1440×1080 AMOLED display, 8 hours, IP67.
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InfiRay Eye III EL25 vs InfiRay Finder FH25R
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.
A wide-angle 640×512 Finder: 25 mm lens, 17.5° field of view, 600 m rangefinder, in a 320 g body. Discontinued but still traded.
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Specification side by side
| InfiRay Eye III EL25 | InfiRay Finder FH25R | |
|---|---|---|
| Technology | Thermal | Thermal |
| Sensor | 384×288 | 640×512 |
| Pixel pitch | 12 µm | 12 µm |
| NETD | ≤25 mK | ≤40 mK |
| Lens | 25 mm | 25 mm |
| Display | AMOLED 1440x1080 | LCOS 1280x960 |
| Battery life | up to 8 h | up to 6 h |
| Weight | 480 g | 320 g |
| Water resistance | IP67 | IP66 |
| Magnification | — | 1.5–6x |
| Digital zoom | — | up to 4x |
| Detection range | — | 1,298 m |
| Field of view | — | 17.5° |
| Recording | — | photo and video |
| Wi-Fi / app | — | yes |
| Battery | — | built-in Li-ion |
Sources: InfiRay Eye III EL25 (spec page); InfiRay Finder FH25R (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: InfiRay Eye III EL25 · InfiRay Finder FH25R · 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