3,5-Zoll-Farb-oder 4-Zoll-S / W-Video-Türsprech

3.5-inch color or 4-inch B/W video door phone: Technical specification Power course: DC 12V/ 1A Screen: 4”B/W or 3.5”color LED Effective resolution: 640(H)x380(V) Operation temperature: -20°C +60°C External dimension: Monitor:220(L)x210(W)x40(H)mm Camera: 175(L)X50(W)x70(H)mm Installation: Surface-mount Match way: One to one ,one to two,two to one,two to two Connection : 5 wires function 1. Visitor calling,video intercom,unlock,monitor 2. Manual deterrent alarm ,Infrared night vision, automatic timer switch 3. Audio and video output, can be connected to the image memory