$80 (3-Pack) Hardwired and 1-Year Replaceable Batt

Updated August 8, 2026

ery Backup Smoke Detector with Photoelectric Sensor Condition: New Damaged?: No Missing Parts?: No Missing Parts Description: Only has what's shown in pictures UPC: 017801703108 Retailer Product URL: https://www.homedepot.com/p/Universal-Security-Instruments-3-Pack-Hardwired-and-1-Year-Replaceable-Battery-Backup-Smoke-Detector-with-Photoelectric-Sensor-USI-SM-HWREP-3/334547167 Disclaimer: Items are sold AS IS. We include both stock photos and actual photos of the item in hand. Stock images are for reference only please rely on the actual item photos for condition and details. No refunds will be given if you don't review the real photos or preview the item. If cannot preview item due to not being local, you are bidding at your own risk and discretion. Refunds will not be rendered for item inaccuracies or wrong data being input on lots. Experience unparalleled protection with the USI Hardwired Smoke Alarm with Replaceable Battery Backup. Equipped with Sensing Plus Multi-Criteria Detection, this advanced photoelectric alarm accurately identifies both slow-burning and fast-flaming fires, ensuring early detection and rapid response. This hardwired alarm connects to other hardwired alarms in the home to provide comprehensive coverage throughout the space. An included replaceable 9-Volt battery ensures continuous protection even during outages. Advanced technology reduces nuisance alarms, minimizing disruptions from activities like cooking. Easily silence a false alarm with the test/silence button. With UL certification, you can trust in the reliability and performance of USI Hardwired Smoke Alarms. Invest in peace of mind and protect your loved ones with this advanced home safety solution.

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