X Sense 10 Year Battery Smoke Detector, Photoelectric Sensor, ETL Listed, Battery Powered Smoke Alarm, SD2J0AX, 1 PACK
X Sense 10 Year Battery Smoke Detector, Photoelectric Sensor, ETL Listed, Battery Powered Smoke Alarm, SD2J0AX, 1 PACK
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X-Sense

X Sense 10 Year Battery Smoke Detector, Photoelectric Sensor, ETL Listed, Battery Powered Smoke Alarm, SD2J0AX, 1 PACK

911 ratings
X Sense 10 Year Battery Smoke Detector, Photoelectric Sensor, ETL Listed, Battery Powered Smoke Alarm, SD2J0AX, 1 PACKX Sense 10 Year Battery Smoke Alarm Fire Detector with LED Indicator Lithium Powered 1 Pack SD2J0AXX Sense Wireless Interconnected Smoke Detector Alarm with Long Range Signal SD19 W 1 PackX Sense Wireless Interconnected Smoke Detector Alarms for Home Safety SD19 W 3 PackX Sense Wireless Interconnected Smoke Alarms with Extended Range SD19 W 6 PackX Sense 10 Year Battery Smoke Alarm Fire Detector with LED Indicator Lithium Powered 5 Pack SD2J0AXSmoke Detector SD19 W 4X Sense 10 Year Battery Smoke Detector Photoelectric Sensor ETL Listed Battery Powered Smoke Alarm SD2J0AX 3 PACKSmoke Detector SD19 W 2X Sense Wireless Interconnected Smoke Alarms for Whole Home Coverage SD19 W 12 PackX Sense Smoke Detector Alarm 10 Year Battery Life Fire Alarm with LED Indicator 4 PackX Sense Smoke Alarm 10 Year Battery Life Fire Alarm with LED Indicator 2 PackX Sense Smoke Alarm 10 Year Battery Fire Alarm Smoke Detector with LED Indicator Silence Button SD2J0AX
ModelSD2J0AX
Count Per Pack1

Key item features

  • 10-Year Battery：Built-in lithium battery provides up to 10 years of continuous power, helping reduce battery replacements and maintenance over the detector’s lifespan.
  • ETL Listed Smoke Alarm：Tested to meet the UL 217 safety standard, this smoke detector features ETL certification for reliable smoke detection performance.
  • Standalone Smoke Alarm：The SD2J0AX works independently without Wi-Fi, wireless interconnection, or a base station; for interconnected alarms that sound together, search for X-Sense SD19-W.
  • Photoelectric Sensor：The photoelectric sensor helps reduce nuisance alarms caused by cooking smoke and steam while providing reliable smoke detection.
  • Easy Installation：Install easily with included mounting hardware—no wiring or electrician required. Ideal for bedrooms, hallways, living rooms, and other indoor areas.
  • Self-Test & Silence：Built-in self-test checks sensor and battery status, while the test/silence button allows quick testing and convenient alarm silencing when needed. Durable housing helps support everyday use.

About this item

Product details

Specifications

Warranty

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Customer ratings & reviews

4.5 out of 5 stars
stars
911 ratings229 reviews
How item rating is calculated
  1. 5 stars78% (715)
  2. 4 stars10% (91)
  3. 3 stars4% (33)
  4. 2 stars2% (15)
  5. 1 star6% (57)

Reviews summary

Pros

  • : Comes with included instructions and minimal hardware.
  • : Offers good quality and features at this cost.
  • : Made with premium materials and solid craftsmanship.
  • : The units present a neat appearance.
  • : It maintains safety for a decade and reduces replacements.

Neutral

  • : Can be loud and effective, but prone to false triggers.
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Showing 1-3 of 229 reviews

Sep 24, 2026
Reviewer name: JisellL
5 out of 5 stars
5 out of 5 stars review

They connect to each other

[This review was collected as part of a promotion.] As a mom I want to have my house as secure and safe as possible and these smoke alarms help me do just that. They connect to each other so if one alerts all of them sound! I was able to install them myself and the connection was very easy too. They are light weight and average size. You dont need to change batteries as they come with it

Review from X-SENSE.com
Helpful?4BNFTBBC6XDH20022451028
Sep 13, 2026
Reviewer name: DiL7
5 out of 5 stars
5 out of 5 stars review

Easy to install smoke alarms that look cute as well

[This review was collected as part of a promotion.] Super easy instalment of the smoke alarm. There were six in a box so we added it in different rooms. Once you click the button, it is automatically on so no need to add anything else.

Review from X-SENSE.com
Helpful?4BNFTBBC6XDH20022451028
Jan 23, 2026
Reviewer name: Jocelyn
Item details
Count per pack: 3
Sold byX-Sense USADelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Soo soo loud! Great!

Works well and its quite loud. The set is a big savings! This fire alarm needs to be installed first before you can test it. The manual or guide to install it is easy to follow. The loudness of the alarm will definitely wake you up. Very user friendly I'd say, so easy to install.

Helpful?4BNFTBBC6XDH20022451028
Current price is $22.99
Price when purchased online
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Sold and shipped by X-Sense USA
4.711003627569529 out of 5 stars
4.7 stars out of 5, based on 835 seller reviews(4.7)
Extended holiday returns
Free Holiday returns until Jan 31