2-Wires Non-Polarity Audio Door Phone Kit
Features:
1)Two-wires non-polarity connection, very simple and never mistake, anyone can install by DIY.
2)Elegant S style design.
3)Ding-ding-dong melody ringing tone.
4)Directly plug on to 230V or 110V city electricity power source (DC 12V power source version isalso available if required).
5)Electric lock control button.
6)Coming with a metal mounting bracket.
7)Outdoor unit front panel is made of aluminum alloy flushed mounted installation.
Technical Data:
1) Working voltage: 230VAC/110VAC 50/60Hz
2) Working current: max. 80mA
3) Working temperature: -10C to 40C
