It can be hard to keep track of how often your trailer needs servicing, given that most trailers do not have odometers. Hummingbird Electronics offer a solution with their new GPS Trailer Odometer, which you can permanently mount to your trailer or caravan. This clever device makes it easy to schedule routine services, thanks to its easy-to-read colour screen which will notify you when a service interval has been reach. You can set reminders based off a specified date or distance travelled.
For more information: Hummingbird