FARBIN Truck Back-up Alarm 105dB 12V-48V Car Reverse Horn BIBI Buzzer Warning Siren Waterproof Industrial Heavy-Duty Backup (Circular 5pcs)

1, Extra high performance backup alarm Made of high quality nylon Material + Waterproof housing with epoxy embedded electronics, by high quality stainless steel power and ground connection terminal. with high reliability, impeccable wear resistance, scratch resistance, dust resistance, no fading, impact resistance and corrosion resistance.It can work in a variety of temperature environments.. 2, Automotive warning horn produces a Powerful Beeping Sound that is 105 Decibel,Nobody will ignore this beeping sound when you are reversing vehicle.helps to catch other driver's and pedestrian's attention even over great distances immediately,prevent accidents and reduce your costs.. 3, Universal for 12V- 48V heavy-duty vehicles and commercial use,best for truck,car,excavators,construction machinery,special vehicles,parking and a variety of large vehicles container vehicles.Universal Mounting Bracket with Slotted Holes,can be Mounted Many Place in your Vehicle.. 4, Easy Installation, Splice a wire from the positive screw terminal to the power wires of the reverse light or a reverse switch installed on the dashboard, then splice a wire to the ground(Negative wire). It can be Protective when Connect the Wire Inversely or Wrong.Reverse polarity protected backing up horn and activation when reverse lights are on.. 5, IF you have any questions about our products, please message us before your purchasing. If you have any problems with the products you received, please contact us in time, we will serve you wholeheartedly!