Renkforce RF-4216078 Recess-mount, Surface-mount PIR motion detector 360 ° Relay White IP20

The Renkforce RF-MSI-200 motion detector uses passive infrared (PIR) to switch on connected devices such as lights. You choose both how long connected devices are staying on, and the motion detection threshold depending on ambient light conditions.

Price: £ 10.99 from Conrad Electronic