12V Piezo Buzzer 85dB Electronic 3 24V Active Tone Alarm Ringer Continuous Sound Cable Length 100mm and Speaker

HIGH QUALITY: This alarm buzzer is mainly made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell. EASY TO OPERATE: Connected to rated power and the buzzer will sound continuously, easy and convenient to use. WIDELY APPLICATION: Our alarm buzzer can be widely used on computers, printers, photocopiers, alarm, electronic toys, automotive electronic equipment, telephone, timer and other electronic products. AUDIO SIGNAL: Multivibrator is composed of transistors or integrated circuits. When switched on, multivibrator vibrates and outputs audio signal. CONVENIENTLY CONTROL: Can be controlled conveniently, sound pressure level: 85 to 95 decibels.