Package Included

- 1 x 3-24V Piezo Electronic Buzzer Alarm 95DB Continuous Sound Beeper

Description:

 - Alarm Diameter:22mm/0.86"
 - Alarm Height:10mm/0.39”
 - 2 Mounting Holes distance:30mm/1.18"
 - 2 Wires length:90mm/3.54"
 - Buzzer Type: Piezoelectric
 - Sound Pressure Level 95 dB
 - Rate Voltage: 12V DC
 - Operating Voltage: 3 - 24V
 - Max Current Rating 10mA
 - Frequency 3900±500Hz

Reference

- https://www.instructables.com/How-to-use-a-Buzzer-Arduino-Tutorial/