Magnification ,x

 2                    3                    5

Objective lens diameter,mm

 32                  44                    50

Lens system

39mmF/1.2          59mmF/1.7         88mmF/1.7

FOV at distance 200yards,ft/m

302/92               197/60           118/36

Focus range,yards

0.25 to infinity       1.0 to infinity         1.0 to infinity

Eye relief distance,mm

15

Dioper setting,D

+4, -4

Overall dimensions,mm

156×79×50           170×79×50         180×80×50

Weight,oz/g

14.88/422              18.34/520          24.69/700

Power supply

CR-123 3V battery (one)

Estimated battery life without IR,hour

Up to 60

Operating temperature,

-30°to+45°

Storage temperature,

0°to+60°

Water instrusion

Meet IPX4 rating

Humidity,%

Up to 93%