Trailer Check Pro

The ultimate wireless trailer diagnostics tool. Run full electrical tests directly from your smartphone, powered by standard tool batteries.

TrailerCheck Pro is a high-fidelity diagnostic application designed to interface seamlessly with TrailerCheck Pro hardware via Bluetooth Low Energy (BLE). Built for mechanics, fleet operators, and DIY enthusiasts, it provides professional-grade diagnostics, monitoring, and control for trailer lighting and power systems. Key Features: Real-Time Telemetry: Monitor output voltage, load current, device temperature, and battery health with high precision. Lighting Controls: Interactive, wireless control over Brake, Tail, Clearance, Turn Signals, Hazards, and Auxiliary power. Intelligent Visualization: Real-time trailer model visualization showing active light states and animations as you test. Battery Diagnostics: Advanced monitoring with support for various battery types (Milwaukee M18, DeWalt 20V, Bosch 18V). Over-the-Air Updates: Perform wireless firmware updates on your TrailerCheck Pro hardware directly from the app. NFC Quick-Launch: Instantly launch the app and connect by tapping your phone to the hardware case. Note: This app requires the physical TrailerCheck Pro hardware to function.