Bộ chuông cửa màn hình Analog ZKTeco VDPO4-B4 Kit – Function introduction:Visual, intercom, unlock, infrared night vision, rainproof. – Camera: 700-line CMOS color camera with super backlight compensation. – Power consumption: Standby 0W, work ≤2W. – Power supply mode: Indoor extension power supply. – Wiring method: RVV4 core wire connection. – Night vision: 5 LED infrared night vision fill lights. – The best distance for night vision: 0.2 to 1.2 […]