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First Alert

First Alert Precision Detection Interconnect Hardwired Smoke Alarm with Battery Backup - SMI100-AC (1046840)

Name: First Alert Precision Detection Interconnect Hardwired Smoke Alarm with Battery Backup - SMI100-AC (1046840)
Brand: First Alert
SKU: first-alert-smi100-ac
Price: 24.95 USD
Availability: InStock

$24.95

Price as of November 10, 2026 at firstalertstore.com. Prices change; the retailer shows the price today.

View at firstalertstore.com

A hardwired smoke alarm includes battery backup and supports interconnection with compatible alarms.

Published by Alarm Installers. How we check each alarm company.