Dimension Cable Length: 11cm/ 4.3"
Wire Length: 10cm / 3.9"
Mounting Hole Distance: 30mm/ 1.2" Total
Size (Pin Not Included): 42 x 17mm/ 1.6" x 0.67" (D*H)
Specification Sound: 85dB
Voltage: DC 9-15V
Rated Current: 12mA
Frequency: 4000500Hz Package Content 3pcs x Active Piezo Electronic Alarm Buzzer Risk Free Shopping Full refund is guaranteed if the item has any quality issue after receiving. About Our goal is to provide you a satisfied and happy shopping. Please email us if our products or services have any problem. We will do our endeavor to resolve your issues.