Rate voltage: 12V DC. Operating voltage: DC 3-24V . Size : 23 x 23 x10mm . Wire Length : 10cm . Each Weight : 4g.
They make continuous sound if connected up to a 9 volt battery. The buzzers are easy to use and worth while for many projects. The buzzers have the occsilator circuit already installed.
Material: Made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and ABS plastic shell.
Application: Widely used in printers, copiers, alarms, electronic toys, timer as a sound device. Also universally work with automotive electronic equipment with 12 Volt.
Package Content : 3 pieces of active electronic alarm buzzer. Type : Continuous sound ( if use 9V battery).