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AEGISLINK Wireless Interconnected Smoke Detector Fire Alarm, Smoke Alarm Fire Detector with Transmission Range of Over 820 ft, Replaceable Battery, 3-Pack
RF Interlinked These alarms use wireless radio frequency technology to both transmit and receive messages regarding hazards in the home so that when one alarm sounds, they all do, informing everyone of the emergency Lifespan The durable and long-lasting design ensures 10 years of stable, reliable performance for complete peace of mind, keeping your home and family safe for a decade Wide Communication Range Over 820 ft (250 m) transmission range outdoors enables you to extend the coverage and protection of interconnected alarms, so your entire home is well-protected with no blind spots One-Button Control Simply press the test/silence button on one of the alarms to test

Price is $22.00
Price: $21.99