Smoke alarms are potential life savers in the event of a really hot emergency, but they do require some degree of maintenance which can be conveniently forgotten by everybody in the house due to the length of time between checkups. DuPont has a new Self-Charging Smoke Alarm which is screwed onto any available ceiling light fixture, feeding off your home electricity. When fully charged, this unique device can work up to 30 days in the event of a power loss before running out of juice. Each time you turn on the light, it will take that window of opportunity to recharge itself. Whenever smoke is detected, it will raise an ear piercing 85dB alarm. You can pick one up for your home today for $39.99.
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