Detailed Product Description

Audio Door Phone SystemFlush Mounting Easy wiring and installation 
Intercom System with Night Vision Function, Can Unlock the Outdoor During the Intercom 
Functions: 
With 2-8 indoor units 
Can call the indoor unit to make the intercom and unlock by the indoor unit 
Outdoor camera with IR-LED auxiliary for night vision 
Technology parameters: 
Power: DC 15V (supported by the indoor unit) 
Current: 
Static state: 20mA 
Dynamic state: 160mA 
Communication time limit: 75 seconds 
Working temperature: -40° C-+70° C 
Indoor unit 
Functions: 
Can unlock the outdoor during the intercom 
Can supply the power for the outdoor unit 
Technology parameters: 
Ring sound: Ding-dong, melody ring for optional 
Power: DC 18V 
Temperature: -10 to 55C 
Humidity: 45 to 95% 
Distortion: <5%