Door Viewer chuông cửa chung cư DV522


1, 3.0 inch color screen;
2, Mini 1MP camera, with 120 degree view angle;
3, With IR leds, support clear night vision at night
4, Doorbell feature;
5, One key to monitor outside;
6, Auto take photo when press doorbell, cyclic store in device;
7, Built-in 1200mAh lithium battery, long standby;
8, Working temperature: -20℃~-55℃
9, Door hole diameter: 14-22mm,Door thickness: 32-120mm