Model KR-918-18 Image sensor 1/4 SHARP CCD COLOR SENSOR Effective pixels PAL: 628(H)*582(V) NTSC: 510(H)*492(V) Resolution 420 TVL (Enhanced) Vertical sync frequency PAL:50HZ NTSC:60HZ Minimum lumination 0.01Lux( IR ON) Lens angle F=2.1 mm/F=2.0 150° Electronic shutter 1/60sec-1/15000 sec S/N Ratio Better than 48dB White balance auto AGC auto Sync.system internal Video output 1.0 Vpp 75ohm Operating temperature -20ºC-50ºC Power supply DC12V Current consumption 50mA Dia:18mm length:29mm Weight 80g