An electronic key locking device [programmable immobilizer] for the use of rental cars. It is activated by magnetic stripe plastic card, which is programmed by a PC to the required rental period. Once the period has expired, the car ignition will not be possible until the card is reprogrammed or an emergency card is used.

A remote immobilizer/actuator of cars, machines and/or electrical appliances. It uses the GSM network to remotely activate or deactivate the ignition. It is based on same controller as in DJ.

An automatic vehicle tracking system based on GPS and GSM. It is used to find a lost car or to monitor at a control room the route driven by a car on the map. It receives position and time signals from GPS satellites to determine the the car's position, then describes that position as north-east coordinates, and then sends that data by an SMS message on the GSM network to the control room. The computer system in the control room converts those coordinates onto the map to let the car then appear as a dot on the map.