Specifications

surveillance securityFunctions: 
With 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: -40C-+70C
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%