First Alert BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, 1 in, White
First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB
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BRK

First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB

|50 ratings

Key item features

  • Dual Sensing: Features a fully insect screened dual ionization smoke sensing chamber for early fire detection.
  • Battery Operated: Powered by a 9V battery with a supervised power supply and a low battery chirp warning.
  • Safety Features: Includes an 85dB horn, a silence feature for nuisance alarms, and a tamper-resistant locking pin to secure the battery.
  • Easy Maintenance: Designed with a hinged cover for convenient battery installation and removal while mounted.
  • Compact Design: Measures 1.6"H x 4.25"Diameter and weighs 4.8 oz, with a low-profile aesthetic.
  • Regulatory Compliant: Meets UL217, CSFM, NFPA 72, and NFPA 101 standards, suitable for various residential and institutional applications.
  • Operational Indicators: Equipped with a red LED light for DC power and alarm indication, and an automatic reset when smoke clears.
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4.4 out of 5 stars
stars
50 ratings29 reviews
How item rating is calculated
  1. 5 stars74% (37)
  2. 4 stars10% (5)
  3. 3 stars4% (2)
  4. 2 stars6% (3)
  5. 1 star6% (3)
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Showing 1-3 of 29 reviews

Jun 26, 2026
Reviewer name: anonymous
Item details
Color: White
Sold byTop Rated Seller.Delivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

very good smoke sensor on this guy. goes off every time I cook bacon! lol

Helpful?4RGJIZ4945AX21803197
Sep 15, 2017
Reviewer name: Larry
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Already reordered, would do again.

Bought 5, then reordered 5 more. Just what I needed for bedrooms in rentals. [This review was collected as part of a promotion.]

Review from zoro.com
Helpful?4RGJIZ4945AX21803197
Dec 8, 2025
Reviewer name: ESound
Item details
Color: White
Sold and shipped byTop Rated Seller.
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Exact Replacement

Exact replacement for my expired unit. Fast shipment and reasonable price.

Helpful?4RGJIZ4945AX21803197
Current price is $39.99
Price when purchased online
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