Features:

[Upgrade protection capabilities] Backup alarm Made of high quality nylon Material + Waterproof housing with epoxy embedded electronics, excellent waterproof and dustproof capability, up to IP67 level, can work persistently in temperatures and environments ranging from -30 to 80 degrees Celsius.
[High Sound Level ]Back-up alarm for turck warning horn produces a Powerful Beeping Sound that is 110(3dB) 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.
[Compatibility] Universal for 12V- 48V heavy-duty vehicles and commercial use,best for trucks, vans, buses, pickups, forklifts, semi-trailers, RV's, construction vehicles,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.
[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.

Product Details:

Delivery
We Do Not Ship Outside of the Continental US.
Return Policy
All items can be returned within 30 days of receipt. Seller will cover return shipping costs.
Feedback

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FARBIN Truck Back up Alarm Car Reverse Alarm Horn Backup Warning Alarms 6Pcs HT