Truck-Lite 92918 Commercial 4" Round Back-Up Alarm | 102dB, Multi-Voltage 12V-24V, PL-3 Plug, Flush Mount

Standard 4-Inch Flush Mount Design: Specially designed to fit seamlessly into industry-standard 4" round lighting cutouts using a standard rubber grommet. The flush-mounted configuration stays recessed within the body pane to avoid impact damage from loading docks, road debris, and low branches.

Loud 102dB Alert Output: Engineered to emit a sharp, uniform single-sound regulation warning tone that easily cuts through heavy machinery clatter, loud engine idle, and intense ambient job site noise to maximize pedestrian safety.

Urethane-Filled Weatherproof Enclosure: Built with a sonically sealed, high-impact polycarbonate housing that is completely urethane-filled. This blocks out water, dust, grime, road salt, and harsh over-the-road vibrations.

Steam-Cleanable Construction: Safely tolerates high-pressure commercial pressure washing and chemical decontamination, ensuring that moisture never degrades internal electronics or causes short circuits.

Plug-and-Play PL-3 Interfacing: Arrives pre-configured with a universal 3-pin PL-3 connection socket on the back, allowing it to instantly hook into existing industry-standard electrical pigtails without tedious wiring work.

Smart 12V-24V Multi-Voltage Platform: Features built-in automatic regulation supporting both 12-Volt and 24-Volt DC configurations, allowing effortless deployment across standard commercial trucks, vocations trailers, and industrial equipment.