for DC 3-24V Electronic Buzzer Alarm Sounder Continuous Sound Beep Car Security Horn Automobile Siren

The system turns on automatically when the car engine starts. Beeping alarm prompt step bystep, closer the obstacle, more rapid the alarm sound. Double CPU for rapid response. for DC 3-24V Electronic Buzzer Alarm Sounder Continuous Sound Beep Car Security Horn Automobile Siren brand new and high quality Feature: The for system turns on automatically when the car engine starts. Beeping alarm prompt step bystep, closer the obstacle, more rapid the alarm sound. Double CPU for rapid response. High quality and easy to install. Specification: Type: Backup Alarms Horns Color: Black Alarm Diameter: 22mm/0.86 Alarm Height: 10mm/0.39 2 Mounting Holes distance: 30mm/1.18 2 Wires length: 90mm/3.54 Buzzer Type: Piezoelectric Sound Pressure Level 95dB Rate Voltage: 12V DC Operating Voltage: 3-24V Max Current Rating 10mA Frequency 3900±500Hz Drive Method: Drive Circuit Built in Mounting Holes Sound: Di Continuous Quantity: 1Pc Note: Transition: 1cm=10mm=0.39inch Please allow 1-2cm error due to manual