This First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location features an 85-decibel siren and voice alarm that tells you where the danger is located. A photoelectric smoke detector helps minimize false alarms from cooking or shower steam. You can wirelessly connect each one with up to 18 alarms in your home. The battery-operated alarms don't require hardwiring for installation and will provide continued monitoring even in the event of a power failure.
Cheapest price in the interval: 41.99 on October 28, 2021
Most expensive price in the interval: 41.99 on November 6, 2021
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