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First Alert Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, SM300-AC, 3-Pack
ASIN: B0CLVR6YJK

by First Alert

First Alert Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, SM300-AC, 3-Pack

7.2
Confidence High

ExpertBeacon Score and confidence are proprietary signals, not retailer ratings.

4.3Amazon rating(131 reviews)
Demand Top 69%
Confidence High
Higher-Priced in Set

How It Compares

Compared with other products in Smoke Detectors & Fire Alarms.

Demand
31%
Expert Score
31%
Relative Price
Higher-priced

Relative Price shows where this product sits in the category. Exact prices stay hidden.

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Affiliate Disclosure — We earn from qualifying purchases. Data last updated on Mar 23, 2026. ExpertBeacon Score, Expert Score, Value, and Confidence are our own signals, not retailer ratings.

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Product Features

  • First Alert's Precision Detection advanced sensing technology reduces cooking nuisance alarms and delivers early warning
  • Dual smoke sensor technology provides optimal protection for both smoldering and fast flaming fires
  • Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning
  • Latching Alarm Indicator visually identifies the unit that initiated the alarm or low battery warning
  • Battery backup provides continuous protection during power outages

Why It Ranked Well

High Confidence

Listing completeness and demand coverage are both strong for this product.

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