More accurate than a motion detector, the WeMo Room Sensor detects heat to see if someone enters a space. Program this to work with smart bulbs to automatically shut off lights if you leave a room, or turn them on if you enter. Photo 3 of 6 in Sleek and Practical Smart Home Tech from Belkin at CES 2015 by Diana Budds

Sleek and Practical Smart Home Tech from Belkin at CES 2015

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More accurate than a motion detector, the WeMo Room Sensor detects heat to see if someone enters a space. Program this to work with smart bulbs to automatically shut off lights if you leave a room, or turn them on if you enter.