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toilet seat sensor
Fei C
Fei C May 09, 2013
toilet seat sensor

I've seen these sensors...

Often 1
Occasionally 0
Rarely 0
Never 3
What is it? 2
1 Comment     6 Tags
Similar Photos: to test the level of alcohol (top) A Bicing station; a close-up of a bicycle and parking slot; and a user at a station kiosk using RFID to check-out a bicycle; (bottom) Carbon Monoxide Sensor

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