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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.

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Official site: https://www.firstalert.com/
General support: https://support.firstalert.com/s/
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Support phone: 1-800-323-9005 — 7 days a week
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First Alert manuals

Latest manuals from manuals+ curated for this brand.

First Alert Dry Chemical Fire Extinguisher User Manual FE5GR FE10GR FE1A10GR

manual

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.

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

Installation Guide

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.

First Alert SC5 Wireless Smart Smoke & Carbon Monoxide Alarm Quick Start Guide

Quick Start Guide

Quick start guide for the First Alert SC5 Wireless Smart Smoke & Carbon Monoxide Alarm (Model SMC0600NV). Includes setup, placement, functions, maintenance, troubleshooting, and regulatory information.

First Alert ADN-12 Adapter Installation Guide

Installation Guide

Detailed installation instructions for the First Alert ADN-12 adapter, enabling interconnection of compatible First Alert and BRK AC-powered smoke detectors and alarms. Includes safety warnings and compatibility information.

First Alert ADN-12 Adapter Plug Installation Guide

Installation Guide

Step-by-step installation instructions for the First Alert ADN-12 adapter plug, ensuring proper connection of First Alert and BRK AC hardwired smoke alarms to compatible Nest Protect systems.

First Alert SC5 Wireless Smart Smoke & Carbon Monoxide Alarm Quick Start Guide

Quick Start Guide

Quick start guide for the First Alert SC5 Wireless Smart Smoke & Carbon Monoxide Alarm (SMCO600NV-A), covering setup, installation, functions, maintenance, troubleshooting, and regulatory information.

First Alert SC5 Wireless Smart Smoke & Carbon Monoxide Alarm Installation and Reference Manual

Manual

Comprehensive installation and reference manual for the First Alert SC5 Wireless Smart Smoke and Carbon Monoxide Alarm (Model SMCO600NV-A). Provides safety information, installation instructions, maintenance guidelines, and response procedures for…

First Alert SC5 Smart Smoke & Carbon Monoxide Alarm Installation and Reference Manual

Installation Guide

Comprehensive guide for installing and referencing the First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm (SMCO600NV-AC-A), including safety information, testing, maintenance, and troubleshooting.

First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm Installation and Reference Manual

Installation and Reference Manual

This document provides installation and reference information for the First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm, detailing features, safety guidelines, installation steps, and maintenance.

First Alert SC5 Battery Smart Smoke & Carbon Monoxide Alarm - Model SMCO600NV-A

Technical Specification

Detailed specifications and features for the First Alert SC5 Battery Smart Smoke & Carbon Monoxide Alarm (Model SMCO600NV-A). Includes information on dual-sensing technology, smart home compatibility with Nest Protect, voice…

First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm Specifications

Technical Specification

Detailed technical specifications, features, and installation guidelines for the First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm (SKU: FSMCO600NVACACL1). Learn about its photoelectric smoke sensor, electrochemical CO sensor,…

First Alert SFA2800 Radio Controlled Weather Station Projection Clock User Manual

User Manual

User manual for the First Alert SFA2800 Radio Controlled Weather Station Projection Clock with Wireless Sensor. Includes setup, operation, safety instructions, and troubleshooting.

First Alert manuals from online retailers

First Alert Bark Genie Automatic Bark Control Device User Manual FABCU1G

FABCU1G • October 19, 2025

The First Alert Bark Genie Automatic Bark Control Device is designed to deter excessive barking in dogs by emitting a safe, ultrasonic sound that is audible only to…

First Alert EZ Fire Spray AF400-2 Instruction Manual

AF400 • October 2, 2025

Comprehensive instruction manual for the First Alert EZ Fire Spray AF400-2, an aerosol fire extinguishing spray designed for common household fires, including grease and electrical fires. Learn about…

First Alert SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup User Manual

SMI100-AC • September 30, 2025

Comprehensive instruction manual for the First Alert SMI100-AC Hardwire Interconnect Smoke Alarm, covering installation, operation, maintenance, and safety guidelines.

First Alert BRK FG250B Dual Ionization Smoke Alarm User Manual

FG250B • September 21, 2025

Comprehensive user manual for the First Alert BRK FG250B Dual Ionization Smoke Alarm, covering installation, operation, maintenance, troubleshooting, and specifications.

First Alert P910 10-Year Maximum Protection Photoelectric Smoke and Fire Detector User Manual

P910 • September 10, 2025

Comprehensive user manual for the First Alert P910 Photoelectric Smoke and Fire Detector, including installation, operation, maintenance, troubleshooting, and specifications.

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector User Manual

SC9120B • September 7, 2025

Comprehensive user manual for the First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector, covering installation, operation, maintenance, and troubleshooting.

FIRST ALERT BRK SC7010B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 3-Pack User Manual

SC7010B-3 • August 30, 2025

The FIRST ALERT SC7010B Hardwired Combination Photoelectric Smoke and Carbon Monoxide Alarm with Battery Backup delivers both smoke and carbon monoxide detection in a single unit. Equipped with…

First Alert 2037F Water and Fire Protector File Chest User Manual

2037F • August 28, 2025

Comprehensive user manual for the First Alert 2037F Water and Fire Protector File Chest. Learn about setup, operation, maintenance, troubleshooting, and specifications for this fire-resistant and waterproof document…

First Alert CO400 Carbon Monoxide (CO) Detector User Manual

CO400 • August 26, 2025

The First Alert CO400 carbon monoxide alarm uses an electrochemical sensor, the most accurate technology available. The permanent sensor lasts up to 5 years. It is powered by…

First Alert BRK 7010B Hardwired Smoke Detector User Manual

7010B • August 26, 2025

Comprehensive user manual for the First Alert BRK 7010B Hardwired Smoke Detector, covering installation, operation, maintenance, troubleshooting, and specifications. Includes details on its photoelectric sensor, battery backup, and…

First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 12-Pack User Manual

BRK SC9120B-12 • August 25, 2025

The First Alert SC9120B Hardwired Combination Ionization Smoke and Carbon Monoxide Alarm with Battery Backup delivers both smoke and carbon monoxide detection in a single unit. This 120-volt…

FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White 1-Pack Standard Detection SC9120FF

SC9120FF • August 23, 2025

The BRK SC9120B hardwire combination smoke and carbon monoxide alarm detects two hazards with one simple unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can…