The Bed Sensor should be positioned across the width of the bed between the mattress and the base. Monitoring periods are set on the Sensor Controller. If the person gets into bed, then gets out again and does not return within the preset time an alarm call will be transmitted. A bedside lamp can be turned on/off automatically using a Remote Controlled Mains Switcher Kit. All "in-bed" and "out-of-bed" activity is transmitted and logged.