Induction loop detector (2-channel) is used as an evaluation device for the reliable detection of vehicles - for example at barriers, garage doors or roller and sliding doors. In conjunction with the appropriate induction loop laid in the floor, it is suitable for use as an automatic door opener and safety device. They prevent a door from closing while a vehicle passes through the loop. The detector is supplied with a voltage of 230 V AC and can be operated according to both the closed-circuit current and the open-circuit current principle. Operation is user-friendly and easy to understand. The matching plug-in base is included in the scope of delivery.