Yale wireless PIR (Passive Infra Red) Movement detectors are for use with all Yale burglar alarms less than 4 years old as they operate on the 433.92 MHz frequency. Each detector offers easy wireless installation & registration to the control panel. Each detector can be set to protect an area just at night (Home arming) or full time protection when a property is vacant (Full arming). This can be set via control panel, remote keypad or keyfob remote controls. The Yale PIR is ideal to be used on