The VdS long-range lens is an accessory for motion detectors. It increases their detection range. Installed at a height of 2.5 m, the motion detectors cover an area of up to 15 m x 15 m. With the VdS long-range lens, the detection range can be extended to 20 meters (at 3 meters wide). It is ideal for monitoring long passageways. The VdS long-range lens is suitable for the following detectors: motion detector ECO, motion detector PROFI VdS, and motion detector DUPLEX VdS. In combination with a VdS detector, the exchange lens is also VdS certified.