251 innovations

A simple device that fits into the light socket. The smoke alarm is charged using the available socket and the light can still be screwed into the smoke alarm

Self-charging smoke alarms

I know it's absolutely crucial to always have working smoke alarms inyour home, but it seems to me that they run out of batteries roughlyonce a week and beep like crazy. DuPont's self-charging smoke alarmsaddress this problem by plugging into ceiling-mounted light sockets,and charging up each time the light switch is turned on. You don't loseyour light either, just plug the bulb directly into the alarm. Flippingthe switch twice tests the alarm, and if you get a false alarm, threequick flips of the switch silences and re-sets the alarm. These alarmsalso have the annoying (but absolutely necessary) low power beep, butinstead of needing to take it down to replace batteries, turning thelight switch on charges up the alarm.

Source: popgadget.netAdded: 9 January 2007