The Interior Flat Pack Transponder is the most popular toll transponder model by far. This industry-defining product has been designed for lane-based and open road toll collection and can be mounted in the interior of most cars and trucks.

The Exterior Flat Pack Transponder is physically similar to the Interior Flat Pack Transponder, but has a conformal coating to protect against exposure to the elements. It has been designed for lane-based and open road toll (ORT) collection and can be mounted on buses, trucks, and motorcycles.

The JANUS Interior Transponder delivers the same powerful flexibility and functionality as the original IAG interior FPT, the world’s most popular toll transponder. Now, in a much smaller package, toll patrons will appreciate JANUS’ sleeker case.

JANUS Exterior Transponders are an exceptionally flexible solution for IAG-protocol applications, where interior-mounted transponders cannot be used. The new JANUS FME (Front Mount Equipment) replaces the legacy ROADCHECK LPT (License Plate Transponder).