SA-C218 CCTV Camera Alarm Wireless Security Burglar Alarm System Image sensor:1/4" color SHARP CCD Signal system:PAL/NTSC Effective pixel:512(H) *582(V) Resolution:420TVL Minimum illumination:0lux/F1.2 S/N ratio:better than 48dB< IR distance:15m B.L.C :on/off switchable White balance:autoLens:3.6mm Alarm Wireless Security Burglar Alarm System Power supply:DC12V Video output:1.0Vp-p/75Ω< operation current:250mA Weight:280g Dimension:85(W) X55(D)mm Operation temperature:-10 to +50°C