Lightwave RF passive switches are a co-ordinated range of door & magnetic window switches, infra-red sensors & handheld controllers. designed to work seamlessly with other Lightwave RF products to give you control & make the home a more comfortable & safer environment. You can switch on a light when a PIR sensor detects movement, or switch on a radiator when a window is closed, the possibility's are endless. The Connect range contains a number of simple passive infra-red sensors which use 433 Mhz frequencies to send on/off commands to your Lightwave RF devices when movement is detected, such as Dimmer switches or power sockets. A variable delay period can be set after which those paried Lightwave RF devices then turn off.