This Design Idea uses the piezoelectric effect of a standard and easy-to-find piezoelectric buzzer to turn mechanical vibrations into electrical energy. Although piezoelectric buzzers generate sound ...

The result is a fridge buzzer that attaches to the inside of ... which can then be glued onto to the fridge door. The other mechanical component consists of a cylinder with a slot dug out for ...

The Adaptahorn Grill type is an electro-mechanical buzzer; UL approved for indoor use. It produces a distinct, vibratory mechanical tone. It mounts on either wall or electrical accessory box. IP 44 ...

The Adaptahorn Weatherproof is UL approved for outdoor use and is suitable for conduit mounting. The signal is an electro-mechanical buzzer and provides a distinctive vibratory mechanical tone. IP 65 ...