X-Sense Smoke Detector, 10-Year Battery, UL 217 Certified, SD2J0AX, 1-Pack

Price: $22.99 - $19.99
(as of Sep 25, 2026 23:39:19 UTC – Details)

From the brand

Standalone or Interconnected

10-YEAR BUILT-IN BATTERY: A sealed lithium battery powers the smoke alarm for up to 10 years, helping reduce battery replacements, low-battery chirps, and routine maintenance across bedrooms, hallways, rentals, and family homes
FEWER 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 use
ETL 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 basements
EASY 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 self-tests or silence nuisance alarms
STANDALONE, CHECK BEFORE BUYING: SD2J0AX works independently with no Wi-Fi, app alerts, base station use, or wireless interconnection; for alarms that sound together, SD19-W is the X-Sense wireless interconnected model
Customers find the smoke detector easy to install, well-designed, and worth the price, with a loud 3-beep alarm sound. The 10-year battery feature receives mixed feedback – while some appreciate not having to replace it, others report it failing after 4 months. Durability is also mixed, with some saying it should last 10 years while others report it didn’t last 2 years. Functionality receives mixed reviews, with some reporting it goes off for no reason.