Steinel 032913 HF 180 COM2 WS motion detector

Also detects reliably through partition walls. Presence switch HF 180. The high-frequency sensor detects every movement quickly and regardless of temperature, even through partition walls, e.g. in offices, anterooms or toilets. 180° detection angle, up to 8 m range. Intelligent technology, high-quality design, simple 3-wire installation.