Active piezo electronic buzzer module support DC 3-24V wide voltage power supply. It is a continuous Tone. As long as it is been powered it will Beep continuously.
Sound Output: 100dB at 12V DC 30cm, Response Frequency: 3000±500Hz, these buzzers are very loud which are not used indoors, them could be used outdoors, such as traffic, factory, etc..
Rated Current: 15mA, Module Size: 30 X 15mm/1.18 X 0.59inch(D*T)
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.
Specifications: Working Voltage: DC 3-24V Rated Voltage: DC 12V Rated Current: 15mA at 12V DC Sound Output: 100dB at 12V DC 30cm Response Frequency:3000±500 Working Temperature:-20~45°C Module Size: 30 X 15mm/1.18 X 0.59inch(D*T)
Package Included: 2X Black Active Piezo Electronic Buzzer