ViiK, the unique sensor solution for car parking management from OPTEX, no need to stop the traffic for construction or dig the ground. ViiK is very easy installation and suitable for the barrier, slide and swing gate, it can be mounted nearly a gate to open the gate, activate ticket machine and close gate after a car completely pass through. To provide more reliability of detection, ViiK is designed to use Microwave and Ultrasonic technology to detect the presence and motion of vehicles and also can ignore human movement.