SFM-27 DC3-24V 10 PCS Buzzer Alarm Beep Electronic Beep Buzzer Active Piezo Buzzer 100dB Tone Alarm Ringer Continuous Sound, Black, 10pc

The active piezo electronic buzzer module supports DC 3-24V wide voltage power supply. It is a continuous tone. As long as it is powered, it will beep continuously. Sound output: 100dB at 12V DC 30cm, Response frequency: 3000±500Hz, these buzzers are very loud and are not used indoors, they could be used outdoors, such as traffic, factory, etc. Rated current: 15&xa0;mA, module size: 30 x 15mm/1.18 x 0.59in (D*T)Note: The data are all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.