Product description
Doorbell that plays a tone when someone opens the door. Demonstrates how a reed switch operates. Perfect for use in shops and other public entrances.
Includes circuit board, components, speaker, reed switch and magnet.
Add a battery holder to make a complete, working product. Suitable holders are 2xAA and 2xAAA.
* Supply voltage: 3VDC
* Current consumption: 3uA (110mA when playing)
* Detection: magnetic reed switch
* Dimensions: 37 x 27mm
Includes circuit board, components, speaker, reed switch and magnet.
Add a battery holder to make a complete, working product. Suitable holders are 2xAA and 2xAAA.
* Supply voltage: 3VDC
* Current consumption: 3uA (110mA when playing)
* Detection: magnetic reed switch
* Dimensions: 37 x 27mm
