12V external wired doorbell.
easy to install, no need to replace or modify the battery.
Soft, loud and clear voice, Ding-dong ringing.
Voltage: 12V DC
Operating Current: 20mA
Relative humidity: 40% RH-90% RH
Color: White and Silver
Material: ABS Plastic
Installation: Wall Mounted or Double-sided Adhesive
Dimensions: 86 x 86 x 25mm
Wiring Diagram :
Red: VCC +12V
Operating Instruction :
1.Connect DC12V power: Red wire to positive (+) and black wire to the negative (-).
2.The green line fast touches yellow line, and it will make Two Ding-dong sound.
Package includeds :
1 x 12V External Wired Doorbell