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  2. SimpliSafe - Wikipedia

    en.wikipedia.org/wiki/SimpliSafe

    The couple worked on SimpliSafe in their own home from 2006 to 2008. [2] [4] Mr Laurans designed the system and tested it at friends’ residences for feedback. [2] SimpliSafe officially launched in 2009 with initial funding from angel investors, introducing the industry's first do-it-yourself (DIY) home security system. [5] [6]

  3. Medicine, batteries, heaters: How to stay safe and avoid ...

    www.aol.com/medicine-batteries-heaters-stay-safe...

    House fires are more common in winter, thanks in large part to mistakes people make when the power goes out. Here are tips for staying safe. Medicine, batteries, heaters: How to stay safe and ...

  4. Smoke detector - Wikipedia

    en.wikipedia.org/wiki/Smoke_detector

    Batteries are used either as sole or as backup power for residential smoke detectors. Mains-operated detectors have disposable or rechargeable batteries; others run only on 9-volt disposable batteries. When the battery is exhausted, a battery-only smoke detector becomes inactive; most smoke detectors chirp repeatedly if the battery is low in power.

  5. Occupancy sensor - Wikipedia

    en.wikipedia.org/wiki/Occupancy_sensor

    Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.

  6. Amazon's rechargeable batteries 'last just as long as ... - AOL

    www.aol.com/lifestyle/recharge-amazon-basic...

    For instance, this 12-pack of rechargeable batteries is just $10, with a unit price of $0.86 per battery. A 12-pack from Energizer is almost double the price at $17. A 12-pack from Energizer is ...

  7. The 5-bedroom, 6-bathroom house located in Winnetka, Illinois was put up for sale at $5.25 million late May, according to the Zillow listing. The home's exterior was used as the McCallister's ...

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