The loudest peizo alarm you will find (108 to 11dB output @ 1 meter). The kit includes a resonant cavity mounting case which is molded plastic, plus mounting ears. If you want to totally startle a burglar, this is the kit to assemble. Operates on 6 to 12 volts. You'll need a good supply, it draws about 500 mA of current
- L: 3" W: 2" H: 1-1/4".
- Requires 6-12 Volt DC @ 500 mA power supply.
- Creates very loud piercing sound.
- Includes plastic case.