The 877 is a compact GSM / GPS based vehicle tracking system with enhanced security features such as configurable alarm inputs, wireless immobiliser, anti- hijack and driver’s ID etc. Communication to peripherals is via a 2.4 GHz communicator.

The GPS information is relayed to the control room via GSM and the unit has a built in 868 MHz onboard beacon transmitter, once activated will assist in pin-pointing the vehicle, using a DF receiver and antenna.