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10YEAR BUILTIN BATTERY A sealed lithium battery powers the smoke alarm for up to 10 years, helping reduce battery replacements, lowbattery chirps, and routine maintenance across bedrooms, hallways, rentals, and family homesFEWER COOKING NUISANCE ALARMS Photoelectric sensing helps reduce unwanted alarms from everyday cooking fumes and steam, so your home stays covered with fewer unnecessary interruptions during daily useETL LISTED TO UL 217 Independently tested and ETL listed to meet the UL 217 safety standard for smoke alarms, with a loud local alert and LED indicator for bedrooms, hallways, living rooms, and basementsEASY TO INSTALL AND USE Mount each battery operated smoke detector in minutes with the included hardware, no wiring or electrician required one button lets you run selftests or silence nuisance alarmsSTANDALONE, CHECK BEFORE BUYING SD2J0AX works independently with no WiFi, app alerts, base station use, or wireless interconnection for alarms that sound together, SD19W is the XSense wireless interconnected model MORE DETAILS alarm Audible asin B08M3PS9R1 batteryaveragelife 10 years bestsellersrank 377 in Tools Home Improvement See Top 100 in Tools Home Improvement 4 in Smoke Detectors Fire Alarms brand XSense builtinmedia 5 X Smoke Alarms color White customerreviews 4.6 4.6 out of 5 stars 4,097 4.6 out of 5 stars itemdimensionsdxwxh 4.8D x 1.8W x 4.8H itemhighlight Photoelectric Smoke Alarm, Fewer Cooking Nuisance Alarms, OneButton Hush SelfTest, Easy NoWire Installation itemweight 2 pounds manufacturer XSense Electronics Co., Ltd. mfrpartnumber SD2J0AX modelnumber SD2J0AX numberofitems 5 powersource Battery Powered productstyle simple sensortype Photoelectric unitcount 5 Count
