Special:
1. Use Sony Colour CCD
2. Built in 4.0-9.0mm Waterproof Varifocal Lens 
3. The Focus can be adjusted Externally
4. Use the Allied Mounting Bracket and sunshied

Model no.                 VD-B311C  
Image sensor            1/3" Sony Colour CCD
Signal System          PAL/NTSC
Frequency                PAL - H: 15.625KHz V:50Hz 
                               NTSC - H: 15.734KHz V:60Hz
Resolution                420 TV Lines
Pixel                        PAL - 500(H) * 582(V) 
                               NTSC - 512(H) * 494(V)
Illumination               0.5 Lux
IRIS                         1/60-1/30000 Sec
S/N Ratio                 >52 dB
AGC                        ON
BLC                         ON
Video output             1 Vp-p 75 ohm composite video
Voltage Supply         DC12V
Current                     < 200 mA