SITERWELL Smoke Detector Fire Alarms, 10 Year Battery Smoke Alarm Fire Detectors with Photoelectric Sensor & Low Battery, UL217 10th Listed, GS525A, 1 Pack (6 Packs) — Open-Box, 5% Off

【Meets UL217-10th Standards】The GS525A smoke alarm is UL217-certified. Its photoelectric technology excels at detecting slow smoldering fires—giving you early warning when every second counts.

【10 Years Battery】The battery-operated smoke alarm has a built-in 3V lithium battery, which runs for 10 years and reminds you when the battery is low. When the alarm sends a fault signal, you must replace the product immediately.

【UL217 Listed】The fire alarms smoke detectors is a photoelectric smoke alarm. Meets the testing requirements of UL217.The photoelectric technology, it is more sensitive in detecting slow smoldering fires which generate light smoke, little heat and may smolder for hours before bursting into flames

【Test/Mute Button】The 10 year smoke alarm is designed to test the normal operation of the product by pressing the test button. Weekly testing is required. The product is designed to be silent and not disturb your rest. Loud 85-decibel alarm delivers penetrating sound, easily heard across every room to wake sleepers and alert all family members timely.

【Magnet and Screw Included】Magnets and screws are included, Siterwell kitchen smoke alarm can be easily mounted on the wall or ceiling. you can choose any installation method you need. Siterwell battery fire detector is Perfect for household users, property managers and construction professionals to secure long-lasting home safety.

【Reduce False Positives】Optimized sensing algorithm effectively filters out daily steam and cooking smoke interference. It greatly lowers unnecessary false alerts while keeping precise response to real burning smoke.Each unit undergoes strict quality inspection to guarantee stable and consistent working performance for long-duration home application.