Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

BRK Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

First Alert BRK Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

4.5
651
See Product Details
64 Questions
Read All Questions & Answers

Both of these alarms started "chirping" 3 hours ago....why?? No smoke or CO in house...How do I shut them off?


Install new batteries in both units. You may THINK your batteries are "fresh" but who knows how long the store has been sitting on them? Check the batteries with a volt meter. These detectors need at least 8.5 volts.

Was this Answer Helpful ?