The HI-TRAC® CMU is a small, low powered, low cost electronic system capable of monitoring up to 2 cycle lanes and 2 pedestrian lanes. The CMU uses established piezo-electric sensor technology to detect bicycles in either dedicated cycle ways or mixed traffic lanes as well as pyroelectric infra red sensors to detect pedestrians.

Unique algorithms developed by TDC Systems Ltd measure the axle count, speed and wheelbase to distinguish true bicycles from other traffic including child scooters, prams, trolleys, motorbikes and mopeds.

The CMU is powered by a small, sealed lithium battery mounted externally to the unit. The CMU battery life for standard operation is 2 years.

The CMU unit is sealed to IP68 and can be installed into either a small pillar or post or into a small sub-surface chamber.

The CMU can be configured to automatically transmit traffic data via GPRS to a web server for secure data storage to a database. GSM dial-up communication is also supported.