4" B/ W hand free Video doorphone Popular design! Easy used and operation! 4 wires system, easy installation Hand free, visitor calling, video intercom, unlock, monitor, warning Weather/ ....
Shenzhen Jinyuanjia Electronics Technology Co., ltd, is a professional manufacturer of Security products, which separated from the Mother company: Shenzhen Jeeja electronics industrial co., ltd., ....
4" B/ W Video doorphone Popular design! Easy used and operation! Power: AC 110V-250V Screen: 4" Flat CRT Resolution: 420TVL Operation Temperature: -20 - + 60 External Dimension: 255....