alarm buzzer: 1)rated voltage: 1.5v,3v,6v,9v,12v,24v. 2)size:14*22.5mm 3)*sound output @ 30cm: 70 dB 4)weight:8g

alarm buzzer:

Model No.:KT-31MB04015P,KT-31MB04030P,KT-31MB04060P.KT-31MB04090P,KT-31MB04120P,KT-31MB04240P.Please check below infos as model.

1)Operating temperature: -20-+65 degrees.

2)Fundamental Frequency: 400+_ 50

DC1.5-24v 400HZ alarm buzzer