FARBIN Truck Backup Alarm 12V–48V — 110 dB Reverse Horn, IP67 Waterproof, Universal Bracket

FARBIN Truck Back up Alarm is a heavy-duty, IP67-rated 12V–48V reverse warning horn that emits a powerful 110±3 dB beeping sound to alert pedestrians and drivers when a vehicle is reversing. Built for commercial and industrial vehicles, this FARBIN backup alarm combines a rugged nylon body, epoxy-embedded electronics and a waterproof housing that withstands dust, rain and extreme temperatures from -30°C to 80°C. It fits a broad range of vehicles — trucks, buses, vans, forklifts, RVs, excavators and more — and installs quickly by tying into the reverse-light circuit. Reverse polarity protection prevents damage from incorrect wiring, while the slotted universal bracket gives flexible mounting options on cab, bumper or chassis.

How loud is the alarm and will it be heard on busy roads?

The alarm generates a high-volume beeping signal rated at 110±3 dB, designed to be audible over traffic and construction noise so people nearby can notice the reversing vehicle. Its sound profile is optimized to attract attention without requiring constant power draw.

• 110±3 dB output for long-distance audibility
• Distinct beeping pattern for quick recognition
• Engineered to cut through ambient urban and jobsite noise

What vehicles and voltages is this backup horn compatible with?

This FARBIN alarm supports a universal voltage range from 12V to 48V, making it suitable for most light-, medium- and heavy-duty vehicles. It’s commonly used on trucks, semi-trailers, construction equipment and specialty vehicles where a loud reverse warning is essential.

• Works with 12V, 24V and up to 48V electrical systems
• Common fits: trucks, vans, buses, RVs, forklifts, excavators
• Universal slotted bracket allows multiple mounting positions

How is the FARBIN backup alarm installed and protected against wiring mistakes?

Installation is straightforward: connect the positive wire to the reverse-light circuit or a dashboard reverse switch and tie the negative to ground. The unit includes reverse-polarity protection so accidental wire reversal won’t damage the electronics, and the bracket simplifies placement during mounting.

• Splice into reverse light or switch for automatic activation
• Reverse polarity protection prevents wiring damage
• Slotted universal mounting bracket for flexible placement

Can this alarm handle harsh weather and demanding jobsite conditions?

Yes — the FARBIN backup horn uses a nylon housing with epoxy-embedded circuitry to reach an IP67 rating, resisting dust ingress and temporary immersion. It’s built to perform reliably across a wide temperature range and in wet or dirty environments common to transportation and construction work.

• IP67-rated waterproof and dustproof construction
• Epoxy-embedded electronics for vibration and moisture resistance
• Operational from -30°C to 80°C for extreme climates

Who is this for?

This FARBIN Truck Back up Alarm is suited for fleet managers, construction supervisors, equipment owners and DIY mechanics who need a robust, high-decibel reverse warning for larger vehicles. Choose this model when you want a universally compatible, weatherproof alarm with simple installation and protection against common wiring errors.

FAQ

Q: What voltage systems does the FARBIN backup alarm support?

A: It works across 12V to 48V systems, suitable for light to heavy vehicles like trucks and excavators.

Q: Is the alarm waterproof and durable for outdoor use?

A: Yes — it has an IP67-rated housing with epoxy-embedded electronics for dust and water protection.