WiPro III dispenses with motion detectors, as used in conventional car alarm systems, and instead uses security-coded radio magnetic contacts to monitor vehicle doors, windows and flaps. In addition to low installation costs, this has the further advantage that people and pets can move freely in the vehicle when the alarm system is activated without having to switch off certain sensors. It is also possible to connect the vehicle's own door contacts or CAN bus system. The "easy add" function makes it easy to pair new wireless accessories at a later date.