Alarm Wire Access Control Door Bell for Home Office Access Control System, DC 12V

Doorbell Type:Wired Model Number:Door Bell Product Information: 1. Working power: voltage: 12VDC, working current: 20mA 2. Product material: ABS plastic material, anti-oxidation or discoloration 3. Installation method: wall or double-sided adhesive paste 4. Dimensions: 86x86x25mm Wiring: Red: +12V Black: GND Green: BELL1 Huang: BELL2 Instructions 1. Turn on the DC12V power supply. Connect the red wire to the positive pole (+) and the black wire to the negative pole (-). 2. Green line The two lines of the yellow line are shorted together to make two sounds