Truck-Lite 92914 Smart 4" Round Self-Adjusting Back-Up Alarm | 77-97dB, PL-3 Connection, 12V-48V

Smart Self-Adjusting Sound Regulation: Continuously samples surrounding noise levels to automatically regulate its volume output between 77dB and 97dB, optimizing pedestrian safety while maintaining noise-code compliance.

Standard 4-Inch Grommet Mounting: Designed to fit seamlessly into industry-standard 4" round lighting cutouts using a standard rubber grommet. The flush-mounted profile stays recessed to avoid impact damage from road debris, branches, and loading docks.

Urethane-Filled Weatherproof Enclosure: Built with a sonically sealed, high-impact polycarbonate housing that is completely urethane-filled. This blocks out water, dust, grease, 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.

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 additional tools.

Extended 12V-48V Wide Voltage Range: Features smart internal circuitry compatible across 12V, 24V, 36V, and 48V DC platforms, making it highly versatile for standard commercial trucks, vocational trailers, and industrial electric forklifts.