The SensorPlug is a passive infrared sensing wall plug that will give any device plugged into it magical, people-sensing powers. The sensor can detect people in a 90° arc and up to 20′ away. It has a built-in timer that will switch off any device if no one is detected for 2 to 5 minutes and so long as someone is in the room it will stay on indefinitely. That’s got to save you money. US$13.99 from Kleargear.
Stop stumbling around in the dark trying to turn on a light by clapping your hands. The SensorPlug simply plugs into a wall socket and when it detects motion, it turns on any electrical device that is plugged into it: lamp, radio or fan even your TV. It’s ideal for home, garage or office for safety and as a burglary deterrent.