Buzzer SFM-27 3-24V - Very Loud - for DIY Projects, Alarms etc.

The loud SFM-27 buzzer with a supply voltage of 3-24V generates a sound of approx. 95dB with a frequency of approx. 3kHz. The buzzer module is perfect for mounting in your own DIY and Arduino projects. Perfect for making a security alarm yourself. Technical data: Operating voltage: 3 to 24V (the higher the voltage is, the louder is the sound) Rated voltage: 12V Rated current: 30mA Sound level: above 90dB Resonance frequency: 3000 ~ 500Hz Working temperature: -30C - + 80C Diameter: 30mm Main body diameter: 30mm Height: 15mm Mounting hole spacing: 40mm Weight: 7g