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X-Sense Smoke Alarm, 10-Year Battery Fire Alarm Smoke Detector with LED Indicator & Silence Button, SD2J0AX, 3-Pack

  • Based on 3,358 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Feb 25
Order within 6 hours and 48 minutes
Available payment plans shown during checkout

Style: Standalone Model


Size: 3-Pack


Features

  • Please Note: SD2J0AX is a basic standalone unit; it does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station; for interconnection, search for SD19-W
  • 10-Year Battery Smoke Alarm (Not AC Hardwired): The smoke detector is built with an energy efficient and eco-friendly lithium battery with low power consumption, enabling an incredible lifetime of 10 years with maximum reliability; spares you the hassle of frequent battery changes and provides uninterrupted 24/7 protection, even during power outages
  • Sensitive & Accurate: Built with an advanced photoelectric sensor and intelligent ST chipset, the alarm can quickly and accurately detect dangerous smoke levels from smoldering fires, and provide the earliest possible warning of fires; the dust-proof isolating plate inside the alarm ensures the detection sensitivity
  • Smart Auto-Check: This 10-year battery smoke detector has manifold self-inspection parameters with clear notifications; if it malfunctions, or if the battery is low, you will be notified immediately so that you can identify and resolve the problem quickly for comprehensive protection
  • Easy Installation: The smoke alarm takes advantage of simple, stable, and wireless installation with the provided screws, or quick and easy installation via 2.8 in magnetic adhesive pads (not included)
  • Premium Quality: Made with an upgraded premium ABS plastic housing, this alarm is fire-retardant, high temperature resistant, and corrosion resistant

Brand: X-Sense


Style: Standalone Model


Power Source: Battery Powered


Alarm: Audible


Sensor Type: Photoelectric


Material: ABS Material


Number of Items: 3


Manufacturer: X-Sense


Brand: ‎X-Sense


Style: ‎Standalone Model


Power Source: ‎Battery Powered


Alarm: ‎Audible


Sensor Type: ‎Photoelectric


Material: ‎ABS Material


Number of Items: ‎3


Manufacturer: ‎X-Sense


Item Weight: ‎1.43 pounds


Product Dimensions: ‎4.8 x 4.8 x 1.8 inches


Item model number: ‎SD2J0AX


Batteries: ‎3 Lithium Metal batteries required. (included)


Size: ‎3-Pack


Shape: ‎Circular


Installation Method: ‎Screw-In


Item Package Quantity: ‎1


Mounting Type: ‎Protruding


Included Components: ‎6 × Screws and Anchor Plugs, 1 × User Manual, 3 × Smoke Alarms SD2J0AX with Sealed 10-Year Lithium Battery


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Lithium Metal


Warranty Description: ‎60-day money-back guarantee, 5-year quality warranty, and lifetime technical support


Date First Available: June 7, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Feb 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Easy installation.
Style: Standalone Model Size: 1-Pack
Nice quality, good price. Easy installation. Tests out fine. 10-year battery is a big plus. I recommend this smoke detector.
Reviewed in the United States on October 27, 2024 by diggerboy

  • Works well.
Style: Standalone Model Size: 1-Pack
Easy to install. Love that you don't have to change the battery every year. Simple to test. The warning sound is loud enough to wake the dead....exactly what my wife and I need!
Reviewed in the United States on January 2, 2025 by Gerald Priest

  • Great value
Style: Standalone Model Size: 3-Pack
Seems to be really quality. Installation was super quick. Great price.
Reviewed in the United States on January 9, 2025 by B. Wilson

  • Went on sale after I installed them
Style: Standalone Model Size: 3-Pack
I like that they installed very easy. I was NOT happy that after I installed them they went on sale. Why can't you just sell at a good price instead of the marketing games. Seriously.
Reviewed in the United States on November 22, 2024 by M. Wallisky

  • Great product!
Style: Standalone Model Size: 1-Pack
The smoke alarms are so easy to install and they last for 10 years. It’s so nice not having to worry about changing batteries!
Reviewed in the United States on December 15, 2024 by james alfieri

  • No hassle smoke alarm.
Style: Standalone Model Size: 1-Pack
I bought this so I would not have to hear chirping from old batteries in the middle of the night. Great piece of mind.
Reviewed in the United States on January 6, 2025 by Lou Vance

  • Love this little thing
Style: Standalone Model Size: 1-Pack
My fire alarm dies and I needed a replacement. I was super skeptical about this at first because of the price and even more skeptical when it came and was so small! I kid you not, it's 2/3 the size of my other alarm! That being said, I like it better. It isn't an eye sore, the design is sleek and unnoticeable, it is just as sharp and loud as any other when tested, and is less blinding with its operation light. I like the durability of the base attachment as well. Good quality for the price. ... show more
Reviewed in the United States on January 1, 2025 by Aubrey L. Lieske

  • Great for the kitchen
Style: Standalone Model Size: 1-Pack
This alarm is great compared to our old one. If you get a spill in the oven, it doesn't go off right away which I love. It was easy to install as well.
Reviewed in the United States on January 24, 2025 by Heidi Milner

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