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Wireless Fire Smoke Detector

Marsoni M251S
Sale price$19.70
Pay 4 payments of $4.92 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Wireless Fire Smoke DetectorThis smoke detector detects the smoke to make sure everyone is awakened and alerted in case of a fire emergency. The detector is suitable for detecting the smoke in home, room, shop, hotel, restaurant, office, school, bank, library, computer house, storehouse and etc, it can work independent and can also work with our alarm system. Specification: Working Voltage: 9V battery(Not Include) Transmission frequency: 433MHZ Working Current: lower 40mA
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Your Wireless Fire Smoke Detector orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 863 reviews
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Verified Purchase
Kimmy
Phoenix, US
★★★★★ 5
Effective
Size: 8" x 10" x 2"
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2025
J
Verified Purchase
Joseph Bod
Boise, US
★★★★★ 5
Fits 2021 Acura TLX
Size: 8" x 10" x 2"
Amazon garage and mfg website hadn't caught up, yet: this does fit the 2021 Acura TLX SH-AWD. No problems. New way of getting access -- pinch sides of glove box and drop off of hinge. Old way required removing an access panel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 14, 2021
J
Verified Purchase
J
Battle Creek, US
★★★★★ 5
Worth it.
Size: 8" x 10" x 2"
Super easy to install. The increased airflow is definitely noticeable.
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Reviewed in the United States on August 1, 2024
J
Verified Purchase
Jim Russell
Lowell, US
★★★★★ 5
Starter
Why did you pick this product vs others?: Good replacement. 
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 20, 2025
W
Verified Purchase
william
Omaha, US
★★★★★ 5
Starter works great
Fits and works great 2005 Mercury mariner 3.0
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Reviewed in the United States on August 29, 2025

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