Features: Back-up alarm is made for commercial use, best for industrial heavy duty commercial vehicles. Automatically adjusts to a voltage range of 12-24 volt vehicles. Waterproof housing with epoxy embedded electronics. Wiring is required to any 12V-24V DC power source. Preferably your reverse backup bulb wire. Easy to install, universal mounting bracket with slotted holes. It can be mounted anywhere in your heavy-duty vehicle. Specifications: • Material: Heavy-duty Plastic housing • Waterproof: Yes • Voltage: 12V-24V • Power: 30W • Current: 1.5-2.0A • Loudness: 110 plus or minus 3dB • Lifetime Warranty .
eBay