X-Sense Wireless Smoke Detector, Interconnected Alarm, Long Range Signal, Battery Powered, SD20-W, 1-Pack
X-Sense Wireless Smoke Detector, Interconnected Alarm, Long Range Signal, Battery Powered, SD20-W, 1-Pack
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X-Sense

X-Sense Wireless Smoke Detector, Interconnected Alarm, Long Range Signal, Battery Powered, SD20-W, 1-Pack

|490 ratings
X-Sense Wireless Smoke Detector, Interconnected Alarm, Long Range Signal, Battery Powered, SD20-W, 1-PackX Sense Wireless Smoke Detector Interconnected Alarm Long Range Signal Battery Powered SD20 W 1 PackX Sense Smoke Alarm 10 Year Lithium Battery Life Fire Alarm with LED Indicator SD21 5 PackSmoke Detector SD20 W 2Smoke Detector SD20 W 4X Sense Interconnected Smoke Alarm Wireless Long Range Fast Response Battery Powered SD20 W 3 PackX Sense Smoke Detector Wireless Interconnected Alarm Long Range Signal Fire Alarm Battery Powered SD20 W 6 PackX Sense Smoke Alarm 10 Year Lithium Battery Life Fire Alarm with LED Indicator SD21 3 Pack
ModelSD20-W
Count Per Pack1

Key item features

  • Whole-Home Alerts: Connect smoke alarms across bedrooms, hallways, living rooms, and multiple floors. When one linked alarm detects smoke, all interconnected alarms sound together to help alert people throughout the home.
  • Link+ Network: Connect up to 18 compatible X-Sense Link+ devices, including SC07-W, SC01-W, and SC06-W. An optional X-Sense remote control, sold separately, allows convenient testing or silencing of connected alarms.
  • 10-Year Battery: The sealed lithium battery provides up to 10 years of power, helping reduce battery replacements and routine maintenance throughout the alarm’s service life.
  • Safety Standards: ETL listed and tested for compliance with UL 217, this smoke alarm includes a built-in self-test function and fire-resistant housing for added protection.
  • Photoelectric Sensor: The photoelectric sensor helps reduce nuisance alarms caused by cooking fumes and steam. Use the test/silence button for routine testing or silencing, and install the alarm easily with the included screws.

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4.6 out of 5 stars
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490 ratings129 reviews
How item rating is calculated
  1. 5 stars81% (395)
  2. 4 stars10% (48)
  3. 3 stars3% (15)
  4. 2 stars2% (9)
  5. 1 star5% (23)
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Showing 1-3 of 129 reviews

Sep 22, 2026
Reviewer name: Beautiful
Top Reviewer
Item details
Model: SD2L0AX
Count per pack: 5
Sold and shipped byX-Sense USA
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

These are great. They were easy to install , has a loud buzzer, so we should be safe now.😁

Helpful?1P8CMXVQIPG920080854272
Oct 14, 2026
Reviewer name: Cheryl
Item details
Model: SD20-W
Count per pack: 6
Sold byX-Sense USADelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Radio wave linking

If my husband can link them anyone can. All working perfectly

Helpful?1P8CMXVQIPG920080854272
Oct 15, 2026
Reviewer name: Monica
Item details
Model: SD2L0AX
Count per pack: 3
Sold byX-Sense USADelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

So far so good 😊

Helpful?1P8CMXVQIPG920080854272
Current price is $27.99
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4.7 stars out of 5, based on 835 seller reviews(4.7)
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