banhao backup alarm 12-48V 110dB weatherproof reverse beeper for trucks & vans

BANHAO Back up Alarm is a compact, heavy-duty 110dB reverse warning beeper that fits 12–48V vehicles to provide a clear audible alert when backing up.

This reverse alarm is designed for fleets and individual vehicle owners who need a reliable, loud warning device for reversing maneuvers. Built from thickened, high-strength nylon and sealed with advanced encapsulation, the unit resists water and dust while delivering a penetrating tone that can be heard in noisy environments. Its integrated, compact shape makes mounting flexible across trucks, vans, forklifts, RVs, construction vehicles and other 12–48V platforms.

How loud is the BANHAO backup alarm and where will I hear it best?

The beeper emits approximately 110dB, a volume intended to cut through traffic and jobsite noise without complicated electronics. That level is especially effective for outdoor, industrial, and busy urban settings where ambient sound is high.

• Rated sound output: about 110dB for strong audibility
• Piercing tone designed to attract attention at distance
• Works well in open yards, streets, and construction sites

Is the alarm weatherproof and durable enough for heavy use?

Yes — the unit uses advanced encapsulation to keep water and dust out, and the housing is molded from thickened nylon for impact and explosion resistance. It’s intended to operate reliably in rain, snow, and dusty environments common to commercial vehicles.

• Waterproof & dustproof encapsulation for outdoor use
• High-strength nylon housing for improved impact resistance
• Stable operation in a variety of working conditions

Which vehicles and voltages is this reverse alarm compatible with?

The BANHAO beeper accepts a wide DC input range (12–48V), letting you install it on light to heavy vehicles without extra converters. Its compact integrated shape allows flexible mounting positions to suit different chassis and rear layouts.

• Compatible with 12–48V electrical systems
• Fits trucks, vans, buses, pickups, forklifts, semi-trailers, RVs, construction vehicles
• Compact design allows straightforward installation in tight spaces

How easy is installation and what maintenance does it need?

Installation is straightforward thanks to the alarm’s integrated design — mount, wire to the reversing circuit or reverse light, and secure. Routine maintenance is minimal: periodic visual checks for secure mounting and clean sound outlet are usually sufficient.

• Simple mounting options for most rear vehicle locations
• Wire to reverse circuit or reverse light for automatic activation
• Low maintenance — inspect mount and clear debris from outlet

Who is this for: fleet managers, construction operators, safety-conscious drivers, and owners of commercial or recreational vehicles who need an affordable, durable, and highly audible reverse warning device. BANHAO’s backup alarm suits anyone wanting a straightforward safety upgrade that works across a broad range of 12–48V platforms and stands up to outdoor conditions.