Trailer Battery Monitor System

BMPRO’s TrailCheck is an additional remote trailer battery monitor system.


  • Bluetooth connectivity
  • Meets NSW regulations
  • LED status indicators for full-system safety check

$ 99

Monitor your trailer with TrailCheck

TrailCheck is an additional remote trailer battery monitor system in the tow vehicle. Use it with TrailSafe break-away safety system, available from our store. As a wireless solution, TrailCheck communicates with TrailSafe via bluetooth.

NSW has the extra legal requirement to have a remote battery monitor onboard. The driver should be able to see or hear it, and it also should indicate that the breakaway system has a charged battery. Is your caravan regestered in NSW? – Don’t go camping without onboard monitor TrailCheck!

The TrailCheck will indicate system status with blue, green, orange or red LED indicators. For example, green light indicates the battery is charged enough for over 15 minutes of operation – and that’s what you need in case of emergency.
Mount TrailCheck with the provided velcro strips so that it is visible to the driver, for example, under the dash, and plug it into a 15A (or lower) fused vehicle 12VDC Outlet or Cigarette lighter. Then pair it with the TrailSafe and test it. You are now safe to tow your caravan!
Weight .100 kg
Dimensions 18.5 × 13.5 × 5.6 cm


Operational Voltage 8-16V
Operational Temperature 0 – 50°C
Communications Bluetooth Low Energy (BLE 4.1)
Dimensions 92 x 52 x 25 mm



Product Manual

Covid-19 update – our online shop is open for business and the orders are shipped daily. Please allow longer delivery times for any orders with the current pressures on Australia Post.