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BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Nov 10, 2026 6:48 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰At 66% above its usual rate, this is currently priced higher than what most shoppers have paid.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- 📈Prices have been moving higher lately — waiting risks paying more if that momentum continues.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0.5/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
FLARETEK
🚚 Shipping
Free Shipping
Product Details
✓Keep your family safe with this hardwired smoke alarm the battery backup means constant monitoring, even if there's a power failure
✓Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm
✓To ensure complete protection make sure to place one on each level of your home and in each bedroom
✓Can connect to other compatible BRK or first alert smoke detectors, to ensure all alarms will sound when smoke is detected
✓Simple to use, with a single test/silence button, and side load battery compartment tamper resistant locking brackets and universal mounting brackets make installation easy
✓Rigorously tested to meet UL standards120 volt AC power with 9V battery backup to keep alarm functioning during power outage
✓First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
✓Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
⚙️ Specifications
Brand
BRK
Style
9120BFF
Power Source
Battery Powered
Color
White
Product Dimensions
5.6"D x 5.6"W x 2.2"H
Item Weight
22.68 g
Alarm
Audible
Operating Humidity
10-95% RH
Sensor Type
Ionization
Global Trade Identification Number
00029054015327
Number of Items
1