Model: AST-471SRA - Color: Black - Material: PVC housing - Chipset: Effio-E - 1/3" Sony CCD image sensor - 3.6mm lens - Signal system: PAL - Resolution: 500 x 582 - Built-in 24 IR LED emitters - Wavelength: 850nm - Min luminance: 0Lux - SNR: > 48dB - Night vision range: 25 meters - Horizontal definition: 700 TV Lines - Electronic shutter: 1/50(1/60) ~1/100000 second - Working voltage: DC 12V - Cable length: 84cm - Built-in controller in the wire - Adjustable parameter: Lens shutter white balance back light compensation image control automatic detection day/night mode noise reduction sync mode camcorder identification code - Language: Simplified Chinese / English / Japanese / German / French / Russian / Spanish / Portuguese - Widely used in Home Office School Childcare applications or theft prevention after-hours surveillance home security etc