The KY-012 buzzer module is an electronic component used to trigger an acoustic alarm. It contains a piezo buzzer that converts an electrical voltage into a sound wave. The module can be controlled by an external circuit to activate the buzzer and trigger the alarm. The KY-012 buzzer module is a useful tool for generating audible alarms in many applications, such as home automation, industrial and consumer electronics. Breakout board with active buzzer Operating voltage 5 V As usual high quality and fast delivery directly from Germany by ordering from AZ-Delivery Of course, you will receive fully automatic automatically when buying through Azdelivery and also guarantees one Invoice including VAT and according to German standards Guaranteed Raw conformity By buying from the German dealer https://elecena.pl/product/20674845/ky-012-buzzer-module-active 2022-04-04 https://elecena.pl/product/20674845/ky-012-buzzer-module-active 2025-12-08