![This stupid thing beeps even after changing battery. Why?!?! Am I supposed to do something more? : r/fixit This stupid thing beeps even after changing battery. Why?!?! Am I supposed to do something more? : r/fixit](https://preview.redd.it/this-stupid-thing-beeps-even-after-changing-battery-why-am-v0-ybuwj0o2b8qb1.jpg?auto=webp&s=1eb8a77ca58aedf7dae832ba6866eaa6cf24ca2c)
This stupid thing beeps even after changing battery. Why?!?! Am I supposed to do something more? : r/fixit
![First Alert SC9120A Hardwire Smoke & Carbon Monoxide Alarm, Combination Smoke & Carbon Monoxide Detectors - Amazon Canada First Alert SC9120A Hardwire Smoke & Carbon Monoxide Alarm, Combination Smoke & Carbon Monoxide Detectors - Amazon Canada](https://m.media-amazon.com/images/I/71i2rUEdcBL._AC_UF894,1000_QL80_.jpg)
First Alert SC9120A Hardwire Smoke & Carbon Monoxide Alarm, Combination Smoke & Carbon Monoxide Detectors - Amazon Canada
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First Alert 10-Year Battery Hardwired Photoelectric Sensor Smoke Detector in the Smoke Detectors department at Lowes.com
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