Review on 🚚 LAMPHUS SoundAlert Backup Alarm Beeper for Trucks - 112dB SAE J994 Class A - 12V to 48V DC - Reverse Back-Up Alarm for Heavy Equipment, Cars, and Vehicles by Joel Norfork

Installation was easy except I had to buy more screws and wires from the hardware store. Very loud and industrial sounding, really fun to confuse people in my car. I also live in a tourist center and people tend to block (not avoid) me uncomfortably in my parking lot. After getting this buzzer and setting it up with my reverse light they start moving within a few seconds, only once have I bothered someone with the buzzer for 2 minutes just because they didn't move when they could easily do it.