The BlazeHunter 635 LRF runs a 640×512 core at 12 µm behind a 35 mm lens; the TICO 6 640x512 runs 640×512 at 12 µm behind 50 mm. On the Johnson yardstick they detect a person at 729 m and 1,042 m and recognize one at 182 m and 260 m; the boxes say 1,830 m and 3,500 m. The BlazeHunter 635 LRF is lighter by 7.2 oz. Approximate prices are ~$1,895 and ~$2,995.
Estimated range, standing human, clear air
IdentifyRecognizeDetectBox claim
ATN BlazeHunter 635 LRF640×512 · 12 µm · 35 mm
112 m identify182 m recognize729 m detectbox says 1,830 m (unspecified (2000 yd))
ATN TICO 6 640x512640×512 · 12 µm · 50 mm
160 m identify260 m recognize1,042 m detectbox says 3,500 m (unspecified)
501002005001k2k5k m
Estimated from pixel pitch and lens focal length using the Johnson criteria (2, 8 and 13 pixels across a 0.5 m human critical dimension), clear air, 50 % probability. A model of the optics, not a measurement — real range depends on temperature contrast, humidity and the animal.