First Alert Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for First Alert products.

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

First Alert manuals

Latest posts, featured manuals, and retailer-linked manuals for this brand tag.

First Alert SCO7 Voice and Location Smoke Detector User’s Manual

December 19, 2023

First Alert SCO7 Voice and Location Smoke Detector Features: Separate sensors to detect smoke and CO; the two alarm systems work independently Voice with programmable location Separate audible and visual signals to indicate alarm levels of smoke or CO Remote…

Brand: First Alert

FIRST ALERT SM310 10 Year Sealed Battery Dual Sensor Smoke Alarm User Manual

November 27, 2023

FIRST ALERT SM310 10 Year Sealed Battery Dual Sensor Smoke Alarm INTRODUCTION Thank you for choosing First Alert® for your Smoke Alarm needs. You have purchased a state-of-the-art Smoke Alarm designed to provide you with early warning of a fire.…

Brand: First Alert

FIRST ALERT SM300-AC Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup User Manual

November 26, 2023

FIRST ALERT SM300-AC Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup Product Information IMPORTANT: PLEASE READ CAREFULLY AND SAVE. The warnings/limitations card and manual contains important information about your Smoke Alarm’s operation. If you are installing this Alarm for…

Brand: First Alert

FIRST ALERT SMCO200 Smoke and Carbon Monoxide Alarm User Manual

November 23, 2023

FIRST ALERT SMCO200 Smoke and Carbon Monoxide Alarm User Manual Model: SMCO200 IMPORTANT! PLEASE READ CAREFULLY AND SAVE. The warnings/limitations card and manual contains important information about your Smoke Alarm’s operation. If you are installing this Alarm for use by…

Brand: First Alert

FIRST ALERT SMI100-AC Hardwire Interconnect Smoke Alarm With Battery Backup User Manual

November 22, 2023

FIRST ALERT SMI100-AC Hardwire Interconnect Smoke Alarm With Battery Backup Overview IMPORTANT! PLEASE READ CAREFULLY AND SAVE. The warnings/limitations card and manual contains important information about your Smoke Alarm’s operation. If you are installing this Alarm for use by others,…

Brand: First Alert

FIRST ALERT SMICO100-AC Smoke and Carbon Monoxide Alarm Ac Powered With Battery Backup User Manual

November 21, 2023

USER’S MANUALSMOKE & CARBON MONOXIDE ALARM AC POWERED WITH BATTERY BACKUP Model SMICO100-AC SMICO100-AC Smoke and Carbon Monoxide Alarm Ac Powered With Battery Backup IMPORTANT! PLEASE READ CAREFULLY AND SAVE. The warnings/limitations card and manual contains important information about your…

Brand: First Alert

FIRST ALERT CO5120BN Hardwired Carbon Monoxide CO Detector User Manual

November 13, 2023

CO5120BN Hardwired Carbon Monoxide CO Detector FAQ [sc_fs_multi_faq headline-0="p" question-0="How do I get my carbon monoxide alarm to stop chirping?" answer-0="If your carbon monoxide alarm keeps chirping, the battery may be low or weak. On First Alert carbon monoxide detectors,…

Brand: First Alert

FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector Instructions

November 5, 2023

Instructions For Use How to Install First Alert SC9120B Hardwired Combination Smoke & Carbon Monoxide Alarms: In this guide, we'll be showing you how to install First Alert Hardwired Smoke and Carbon Monoxide Alarms. Here are a few items you'll…

Brand: First Alert

FIRST ALERT Carbon Monoxide Alarm Instructions

October 30, 2023

FIRST ALERT Carbon Monoxide Alarm Instructions CARBON MONOXIDE SAFETY Carbon monoxide is an invisible, odorless and deadly gas that can be produced by any fuel- burning device. Known as “the silent killer,” CO poisoning is the number one cause of…

Brand: First Alert

First Alert 9120B Smoke Alarms User Manual

October 27, 2023

First Alert 9120B Smoke Alarms User Manual AC Powered Ionization Smoke Alarm with Silence Latching Features Model 9120 Input: 120V AC ~, 60 Hz, 0.04A AC Powered Ionization Smoke Alarm with Battery Back-up, Silence and Latching Features Model 9120B Input:…

Brand: First Alert

First Alert SmartBridge DVR Security System Quick Start Guide

quick start guide • December 16, 2025

Quick start guide for the First Alert SmartBridge DVR security system. Learn how to connect your DVR, cameras, monitor, mouse, and network for easy setup and remote access.

Brand: First Alert

First Alert ZCOMBO Combination Smoke and Carbon Monoxide Alarm User Manual

User Manual • December 13, 2025

Comprehensive user manual for the First Alert ZCOMBO Combination Smoke and Carbon Monoxide Alarm. Learn about installation, maintenance, testing, safety features, troubleshooting, and Z-Wave integration for enhanced home safety.

Brand: First Alert

First Alert GCO1 Plug-In Explosive Gas and Carbon Monoxide Alarm User's Manual

User's Manual • December 7, 2025

Comprehensive user manual for the First Alert GCO1 Plug-In Explosive Gas and Carbon Monoxide Alarm. Covers safety, installation, operation, testing, maintenance, troubleshooting, and regulatory information.

Brand: First Alert

First Alert Homeowner's Guide: Understanding Smoke & Smoke/CO Combo Alarms

User Guide • November 28, 2025

A comprehensive guide from First Alert and BRK Electronics for homeowners, explaining the features, operation, maintenance, and importance of smoke and smoke/CO combo alarms. Covers LED indicators, battery backup, interconnected systems, and carbon monoxide safety.

Brand: First Alert

Installation Guide for BRK ADK Adapter Plug with Kidde and First Alert Smoke Alarms

Installation Guide • November 13, 2025

Detailed installation instructions and compatibility guide for the BRK ADK Adapter Plug, enabling interconnection of BRK, First Alert, Kidde, Fyrnetics, and Lifesaver smoke alarms. Includes safety warnings and model compatibility lists.

Brand: First Alert

First Alert Anti-Theft Safe Operation and Installation Guide

operation and installation guide • November 11, 2025

This guide provides detailed instructions for operating, installing, and maintaining your First Alert Anti-Theft Safe models 2074F, 2074EF, 2079F, and 2079EF. Includes setup, programming, care, troubleshooting, and warranty information.

Brand: First Alert

First Alert CO400B Carbon Monoxide Alarm - Technical Specifications and Features

Technical Specification • November 10, 2025

Detailed information on the First Alert CO400B battery-powered carbon monoxide alarm, including its electrochemical sensor, silence features, end-of-life signal, technical specifications, shipping details, and installation guidelines.

Brand: First Alert

First Alert SMICO105-AC Smoke and Carbon Monoxide Alarm User Manual

User Manual • November 9, 2025

User manual for the First Alert SMICO105-AC AC-powered Smoke and Carbon Monoxide Alarm with 10-year battery backup. Covers installation, features, testing, maintenance, and safety guidelines for enhanced home protection.

Brand: First Alert

First Alert CO615 Plug-In Carbon Monoxide Alarm User Manual

User's Manual • November 8, 2025

Comprehensive user manual for the First Alert CO615 Plug-In Carbon Monoxide Alarm, covering safety information, installation, operation, maintenance, troubleshooting, and warranty details.

Brand: First Alert

First Alert SM210M Micro Smoke Alarm User Manual

User Manual • November 6, 2025

User manual for the First Alert SM210M 10-year sealed battery micro smoke alarm, covering installation, testing, maintenance, safety, and troubleshooting. Learn about alarm features, placement recommendations, and warranty information.

Brand: First Alert

First Alert Dry Chemical Fire Extinguisher User Manual FE5GR FE10GR FE1A10GR

manual • November 5, 2025

User manual for First Alert FE5GR, FE10GR, and FE1A10GR dry chemical fire extinguishers. Provides detailed instructions on installation, operation, inspection, safety precautions, cleaning, servicing, disposal, and warranty information.

Brand: First Alert

Guide d'installation et d'utilisation de l'extincteur de cuisine First Alert Kitchen5

Installation Guide • November 5, 2025

Informations importantes sur l'installation et le retrait du socle de l'extincteur d'incendie de cuisine First Alert Kitchen5. Inclut des avertissements et des instructions étape par étape pour une utilisation sécuritaire.

Brand: First Alert

First Alert SC5 Battery Smart Smoke & Carbon Monoxide Alarm User Manual

SMCO600NV • August 8, 2025 • Amazon

The fire safety you trust is now connected and compatible. Add smart fire safety alerts to your home with the First Alert SC5 Battery Smart Smoke and Carbon Monoxide (CO) Alarm. This 2-in-1 device elevates your home’s fire and CO safety whether…

Brand: First Alert

First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm User Manual

SMCO600NV-AC • August 6, 2025 • Amazon

The fire safety you trust is now connected and compatible. Add smart fire safety alerts to your home with the First Alert SC5 Hardwire Smart Smoke and Carbon Monoxide (CO) Alarm. This 2-in-1 device elevates your home’s fire and CO safety whether…

Brand: First Alert

First Alert Slim Photoelectric Smoke Alarm (Model PR710) - User Manual

PR710 • July 19, 2025 • Amazon

Comprehensive user manual for the First Alert PR710 Slim Photoelectric Smoke Alarm with 10-Year Sealed Battery. Includes installation, operation, maintenance, troubleshooting, specifications, and warranty information for this advanced home safety device.

Brand: First Alert

First Alert CO600 Carbon Monoxide Detector User Manual

CO600 • July 13, 2025 • Amazon

The First Alert CO600 Plug In Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide. The plug in design of this personal carbon monoxide detector means you can simply plug the alarm into a 120 volt wall outlet,…

Brand: First Alert

First Alert SM210L Smoke Alarm Instruction Manual

SM210L • July 6, 2025 • Amazon

Comprehensive instruction manual for the First Alert SM210L 10-Year Sealed Battery Smoke Alarm with Safety Path Light, including setup, operation, maintenance, troubleshooting, and specifications.

Brand: First Alert

First Alert HOME1 Fire Extinguisher for Home, Standard Rechargeable Compliance Unit, UL RATED 1-A:10-B:C, HOME1, Red, 1-Pack HOME1 1 PACK User Manual

FE1A10GR195 • June 28, 2025 • Amazon

This instruction manual provides essential information for the safe and effective use of the First Alert HOME1 Fire Extinguisher. Learn about its features, proper operation, maintenance, and safety guidelines to protect your home from various types of fires, including wood, paper, trash,…

Brand: FIRST ALERT

First Alert SMI100 Smoke Alarm User Manual

SMI100 • June 16, 2025 • Amazon

Comprehensive user manual for the First Alert SMI100 Battery-Operated Smoke Alarm, covering installation, operation, maintenance, troubleshooting, and specifications.

Brand: First Alert