B/W Video Door Phone

1) Power supply: DC 18V
2) Power consumption:
    a) Standby: 0.5 b) Working: 10W
3) Working Temperature:-20 ~ 50C 
4)Resolution:380 TVL
5) Dimensions (W x H x D): 222 x 222 x 65mm
6) Available cameras: TK-808B, TK-819B