Lens magnification ,x

2X42

4X50

Objective lens diameter,mm

42

50

Lens system

50mmF/1.2

80mmF/1.7

FOV at distance 100m/110yards,m

19/63

16/52

Field of view,deg

18

12.5

Focus range,m

1.5 to infinity

1.0 to infinity

Exit pupil diameter,mm

6

Eyepiece Dioper adjustment,dptr

+4,-4

Eye relief,mm

15

Power supply,v

CR-123 3V/3.6V battery (one)

Battery life IR on,hour

Up to 20

Battery life IR off,hour

Up to 60

Overall dimensions,L×H×W,mm/in

183×81×61

203×81×61

Weight,g

530

613

Effective Distance

Detection range,m

200/150

220/175

IR power,mw

25≤

IR wavelength,nm

850

IR effective distance,m

25

Environmental Data

IP standard of water-resistence

IPX4

Humidity,%

93

Operating temperature,

-30°to+45°

Storage temperature,

0°to+60°