Model Number: NV-342B-3x-1 Key Specifications/Special Features: Automatic on/off proximity sensorMulti-coated all-glass opticsLong-range infrared illuminatorTotal darkness IR system: yesIIT generation 1+: 40lp/mmMagnification: 3xLens system: f 1.2, 90mm

FOV: 20

Range of focus: 20m to infinity

Diopter adjustment: -5 to +5

Automatic brightness control: no

Automatic shutoff system: yes

Infrared illuminator: yes (focusing)

IR indicator: yes (LED indicator)

Low battery indicator: yes (LED indicator)

Power supply: 2 x 3V, CR123A type battery

Battery life: 20 hours, without IR

Environmental rating: weather- and fog-resistant

Operating temperature: -40 to +50°C

Storage temperature: -50 to +70°C

Dimension: 172x114x55mm

Weight: 650g

Warranty: 1 year