OXAMBIR Back Up Alarm 110dB 6‑Pack — 12–48V Waterproof Heavy‑Duty Reverse Beeper for Trucks & Vans

Built for demanding commercial and construction environments, this six‑piece set delivers a clear, attention‑grabbing tone to warn pedestrians and workers when large vehicles are backing up. Each unit combines a durable nylon housing, epoxy‑sealed electronics and IP67‑level protection so the alarms keep sounding reliably in wet, dusty, cold or hot conditions. The wide 12–48V compatibility and universal bracket make the beepers easy to add to trucks, vans, forklifts and other large equipment.

How loud is the alarm and why does that matter?

The OXAMBIR alarm produces about 110dB (±3dB), a volume designed to be heard above engine noise and jobsite commotion. That loudness helps ensure nearby people notice a reversing vehicle even in noisy environments.

• Nominal sound output: 110dB ±3dB at source
• Clear beeping waveform for quick recognition
• Effective around busy yards, streets and construction sites

What environmental conditions can it handle?

These beepers are built to operate through harsh conditions: the electronics are embedded in epoxy and the body uses reinforced nylon to resist impacts, moisture and dust. The units meet IP67 standards and are rated to function across a wide temperature span, so they withstand seasonal extremes without failing.

• IP67 waterproof and dustproof protection
• Epoxy‑encapsulated circuitry for moisture resistance
• Operating range roughly −30°C to 80°C for year‑round use

How do I install the backup alarm on my vehicle?

Installation is straightforward and does not require specialized tools: connect the red lead to your reverse lamp power or reverse switch and attach the black lead to chassis ground. The universal mounting bracket with slotted holes gives flexibility to position the alarm where it will be most effective.

• Connect red wire to reverse light power or reverse switch
• Attach black wire to vehicle ground
• Mount using slotted bracket—multiple orientation options

Which vehicles and applications are compatible?

The alarms accept 12–48V DC, so they pair with a wide range of commercial and heavy equipment. They’re particularly suited to vehicles and machinery that regularly reverse in populated or noisy areas where audible warning is essential.

• Compatible with 12V–48V systems (cars, trucks, vans, buses)
• Works on forklifts, construction equipment, RVs, trailers
• Ideal for fleets, job sites, warehouses and delivery vehicles

Who this is for: This six‑piece pack is meant for fleet managers, contractors and vehicle owners who need a rugged, high‑volume reversing warning across multiple units. If you maintain trucks, vans, forklifts or construction machines and require a dependable, weatherproof alarm that’s easy to install and suited to extreme environments, the OXAMBIR backup alarms offer a practical, cost‑effective solution. Each order includes six alarms and a one‑year warranty for added peace of mind; contact OXAMBIR customer support with any setup or product questions.