📘 First Alert manuals • Free online PDFs

First Alert Manuals & User Guides

First Alert is a trusted leader in home safety products, manufacturing reliable smoke alarms, carbon monoxide detectors, fire extinguishers, and smart home security solutions.

Tip: include the full model number printed on your First Alert label for the best match.

First Alert Support

Official site: https://www.firstalert.com/
General support: https://support.firstalert.com/s/
Warranty & registration: Warranty info · Register a product
Support phone: 1-800-323-9005 — 7 days a week
Contact form: Contact manufacturer support

First Alert manuals

Latest manuals from manuals+ curated for this brand.

First Alert SC7010B Smoke and Carbon Monoxide Alarm User Manual

manual

Comprehensive user manual for the First Alert SC7010B AC Powered Smoke & Carbon Monoxide Alarm, covering installation, features, maintenance, troubleshooting, and safety information.

First Alert SC9120B Smoke and Carbon Monoxide Alarm User Manual

User Manual

Comprehensive user manual for the First Alert SC9120B AC-powered Smoke and Carbon Monoxide Alarm with battery backup. Learn about installation, operation, safety tips, maintenance, troubleshooting, and regulatory information.

First Alert ONELINK Alarms: Frequently Asked Questions and Guide

FAQ Document

Explore the features, installation, and benefits of First Alert ONELINK wirelessly interconnectable smoke and CO alarms. This guide answers common questions for homeowners and contractors.

First Alert HD6135FB Heat Alarm User's Manual

User's Manual

This user's manual provides comprehensive instructions for the First Alert HD6135FB 120V AC/DC powered heat alarm with battery backup. It details installation, operation, testing, maintenance, troubleshooting, placement recommendations, and warranty…

First Alert 7030BSL Hardwired Combination Smoke & Carbon Monoxide Alarm with Strobe Light User Manual

User Manual

Comprehensive user manual for the First Alert 7030BSL hardwired combination smoke and carbon monoxide alarm with integrated strobe light, detailing installation, operation, maintenance, safety tips, and troubleshooting. Includes information on…

First Alert CO5120BN/CO5120PDBN Carbon Monoxide Alarm User Manual

User Manual

This user manual provides comprehensive information on the First Alert CO5120BN and CO5120PDBN AC-powered Carbon Monoxide Alarms. It covers key features, installation instructions, safety guidelines, operation, troubleshooting, and maintenance for…

First Alert 7030BSL Combination Smoke & Carbon Monoxide Alarm with LED Strobe Light User Manual

manual

Comprehensive user manual for the First Alert 7030BSL combination smoke and carbon monoxide alarm with integrated LED strobe light. Covers installation, operation, maintenance, safety tips, and troubleshooting.

First Alert SC9120B Smoke & Carbon Monoxide Alarm User Manual

User Manual

User manual for the First Alert SC9120B AC Powered Smoke & Carbon Monoxide Alarm with Battery Back-up. Includes installation, operation, safety tips, and troubleshooting.

First Alert SC9120B Smoke & Carbon Monoxide Alarm User Manual

User Manual

Comprehensive user manual for the First Alert SC9120B Smoke & Carbon Monoxide Alarm. Learn about installation, operation, safety features, maintenance, and troubleshooting for this dual-threat detection device.

First Alert CO5120BN & CO5120PDBN Carbon Monoxide Alarm User Manual

User Manual

Comprehensive user manual for First Alert CO5120BN and CO5120PDBN AC-powered Carbon Monoxide Alarms with battery backup. Includes installation, operation, safety, maintenance, and troubleshooting information.

First Alert Smoke and Carbon Monoxide Alarms User Manuals

User Manual

Comprehensive user manuals for First Alert 9120LBLA Hardwire Smoke Alarm and First Alert CO615A Carbon Monoxide Plug-In Alarm, covering installation, operation, maintenance, safety, and troubleshooting.

First Alert CO5120BN/CO5120PDBN Carbon Monoxide Alarm User Manual and Installation Guide

User's Manual

Comprehensive user manual and installation guide for the First Alert CO5120BN and CO5120PDBN AC-powered Carbon Monoxide Alarms. Includes safety information, installation instructions, troubleshooting, maintenance, and warranty details.