Smarthome 2420M Wireless INSTEON Motion/Occupancy Sensor Automatically turns on INSTEON-controlled lights or appliances when motion is detected Automatically turns off after motion stops (adjustable anywhere between 30 seconds and 2 hours) Optional night-only mode keeps lights from turning on during the day Excellent range - up to 150-Feet from nearest Access Point or other dual-band product Adjustable high/low light and motion sensitivity