This doorbell emits a sound signal when a person or object passes within its range, as it automatically plays the chosen melody. It can be installed without electrical connections.
Technical features:
Can be used as a passage announcer
Acoustic tone signal
Powered by 3 x 1.5V AA batteries
Button to choose melodies
The package contains:
No. 1 Doorbell with motion sensor
No. 1 Wall mounting bracket
