Search  for anything...
X-Sense

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

    • Based on 3,753 reviews
Condition: New
Checking for product changes
$19.99 Why this price?
Save $14.98 was $34.97

Buy Now, Pay Later

As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Apr 8
Order within 17 hours and 44 minutes
Available payment plans shown during checkout

Recently Viewed

Style: Standalone Model


Size: 1-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


Color: White


Product Dimensions: 1.8"D x 4.8"W x 4.8"H


Item Weight: 6.24 ounces


Alarm: Audible


Sensor Type: Photoelectric


Material: ABS


Number of Items: 1


Brand: ‎X-Sense


Style: ‎Standalone Model


Power Source: ‎Battery Powered


Color: ‎White


Product Dimensions: ‎1.8"D x 4.8"W x 4.8"H


Item Weight: ‎6.24 ounces


Alarm: ‎Audible


Sensor Type: ‎Photoelectric


Material: ‎ABS


Number of Items: ‎1


Manufacturer: ‎X-Sense


UPC: ‎850042393079


Part Number: ‎SD2J0AX


Item Weight: ‎6.2 ounces


Country of Origin: ‎China


Item model number: ‎SD2J0AX


Batteries: ‎1 Lithium Metal batteries required. (included)


Size: ‎1-Pack


Pattern: ‎Fire Alarm


Shape: ‎Circular


Voltage: ‎3 Volts


Installation Method: ‎Screw-In


Item Package Quantity: ‎1


Sound Level: ‎85 dB


Mounting Type: ‎Protruding


Included Components: ‎1 × User Manual, 1 × Smoke Alarm SD2J0AX with Sealed 10-Year Lithium Battery, 2 × Screws and Anchor Plugs


Batteries Included?: ‎Yes


Batteries Required?: ‎No


Battery Cell Type: ‎Lithium Metal


Average Battery Life: ‎10 years


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


Date First Available: October 21, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 8

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
  • Affirm Pay in 4
  • 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.

Similar Products

Top Amazon Reviews

    • great value
Style: Standalone Model Size: 3-Pack
great fit easy to install durable work great
Reviewed in the United States on March 11, 2025 by Rod Nedley
    • Great smoke detectors
Style: Standalone Model Size: 3-Pack
Easy to install and works great
Reviewed in the United States on February 25, 2025 by Garymp
    • Finally a smoke detector that actually works properly
Style: Standalone Model Size: 1-Pack
Nothing to assemble, battery already installed, just tighten the back and attach it to the wall. Easy to test and lightweight.
Reviewed in the United States on February 11, 2025 by Placeholder
    • They alert as expected.
Style: Standalone Model Size: 3-Pack
Work as expected, easy to install. The kill button is slightly recessed so is hard to hit with a stick during a false alarm (when placed on the ceiling). Added a sticky rubber cabinet damper button to it so as to easily press it with a stick from below.
Reviewed in the United States on February 14, 2025 by codybernie
    • Good Price & 10 Year Battery!
Style: Standalone Model Size: 1-Pack
Honestly I hope to never know if they work great, because that would mean smoke and/or fire. But I didn't want to have to hard-wire them and definitely didn't want to deal with regular batteries. These have a 10 year battery, which is great. My handyman did test them after installing and they are loud enough to wake me for sure. ... show more
Reviewed in the United States on February 17, 2025 by Sheryl
    • Fite Safety
Style: Standalone Model Size: 1-Pack
Easy to install. Works great.
Reviewed in the United States on March 12, 2025 by FyrFtr
    • Easy to install
Style: Standalone Model Size: 3-Pack
Fair pricing, added safety for my home. Easy to install. Delivered on time.
Reviewed in the United States on February 20, 2025 by Timothy Copeland
    • 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

Can't find a product?

Find it on Amazon first, then paste the link below.