Bộ 2 chuông điện tử Piezo 3v - 24v

Features: This mini electronic beeper support DC 3-24V power supply and produce continuous high-decibel alarm sound up to 85dB. 30mm diameter and 15mm thickness with 2-wire pigtails easy to connect widely used in the car modification,DIY electronics reminder projects or other area needs sound alarm. Specification: Color:Black/White Working Voltage: DC 3-24V Rated Voltage: DC 12V Rated Current: 30mA Sound Output:85dB Response Frequency:3000±500 Module Size: 30 X 15mm/1.18 X 0.59inch(D*T) Package includes: 1*Active Piezo Electronic Buzzer Note: 1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.