First Alert Hardwire Smoke Alarm, Home Improvement | Walmart Canada Online Shopping
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Hardwire battery back up smoke alarm with quick plug-in connectors for easy installation can be interconnected with up to 12 BRK smoke alarms and 6 additional devices. Latching alarm indicator identifies initiating alarm. Alerts when it is time to change battery. 9 volt battery included.

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Specifications
Model Number: SA9120BCNA
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Online price available only at Walmart.ca. In store price based on the Walmart store you have selected. Prices, selection and availability may vary by store. While the site is updated regularly, this information is subject to change without notice. Visit or call your local Walmart for current information on pricing and availability.