Technology Indications:
The max of observation distance: 150-200m (ambient light illumination 10-2Lux)
Magnification times: 3.5X
Viewing feild: >10o
Objective focal length: 100mm
Objective aperture: 60mm
Focus Range: 2m～∞
Adjustable range of veiwing feilds: -4～+4D
Supply voltage: 3.0V
Battery model: One CR2 lithium ion battery
Outline dimensions: 200*100*75mm3
Weight: 0.9kg
Protection from glare: automatic protection from glare
Infrared lamp: two adjustable lamps (the max of effective visual distance: 50-80m)