Single household system video inter-phone Dual talking, supervising, Intercom and remote unlocking Camera in door station can provide clear picture even in nighttime. Parameter Power input 220v multiply or minus 10percent power supply for indoor phone 12dv Power consumption static 0. 5 W; working less than or equals to 14w Working temperature minus 20 to 50 centigrade Humidity less than or equals to 90percent
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