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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.

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 SM300-AC Smoke Alarm User Manual: Installation, Features, and Safety

user manual

Comprehensive user manual for the First Alert SM300-AC AC-powered dual-sensor smoke alarm with battery backup. Learn about installation, features, testing, maintenance, troubleshooting, and safety tips.

First Alert SC9120B Hardwired Smoke and Carbon Monoxide Alarm Installation Guide

instruction manual

Step-by-step instructions for installing the First Alert SC9120B Hardwired Combination Smoke and Carbon Monoxide Alarm, including wiring, mounting, and testing procedures.

First Alert Battery Replacement Guide: Simple Step-by-Step Instructions

instruction guide

A comprehensive guide from First Alert Professional Security Systems detailing how to replace batteries in various security devices, including keypads, detectors, and transmitters. Learn simple, step-by-step procedures.

Carbon Monoxide Alarm FAQ: Installation, Testing, and Placement

FAQ

Frequently asked questions about carbon monoxide alarms, covering installation, placement, testing, troubleshooting chirping, and distinguishing false alarms. Information from First Alert and NFPA guidelines.

First Alert SMCO410 2-in-1 Smart Smoke & Carbon Monoxide Alarm - Technical Specifications and Features

technical specification

Detailed specifications, features, and installation guidance for the First Alert SMCO410, a 2-in-1 smart smoke and carbon monoxide alarm compatible with Z-Wave and Ring systems.

First Alert SMI110 Smoke Alarm: 10-Year Battery User Manual & Safety Guide

User Manual

Explore the First Alert SMI110 10-Year Battery Smoke Alarm user manual. Learn about installation, testing, maintenance, and crucial fire safety tips for reliable home protection.

First Alert 9120/9120B Smoke Alarm User Manual: Installation & Safety Guide

manual

Comprehensive user manual for First Alert 9120 and 9120B AC-powered ionization smoke alarms. Includes installation, testing, maintenance, and fire safety tips.

First Alert SMC0600NV Smart Smoke & Carbon Monoxide Alarm Installation Guide

Installation Guide

Installation and user guide for the First Alert SMC0600NV Wireless Smart Smoke & Carbon Monoxide Alarm. Covers setup, placement, maintenance, troubleshooting, and regulatory information.

First Alert CO600 Carbon Monoxide Alarm User Manual & Safety Guide

User Manual

Learn how to install, operate, and maintain your First Alert CO600 Carbon Monoxide Alarm for essential home safety. This guide covers installation, CO awareness, testing, and troubleshooting.

FIRST ALERT WLD3CABLE WiFi Water Leak and Freeze Detector Cable Sensor Installation Guide

Installation Guide

Installation guide for the FIRST ALERT WLD3CABLE WiFi Water Leak and Freeze Detector Cable Sensor. Learn how to extend water sensing range, connect multiple sensors, and find support information.

Troubleshooting Smoke and Carbon Monoxide Alarms: Chirps, Lights, and False Alarms

Troubleshooting Guide

A comprehensive guide to troubleshooting common issues with First Alert and BRK smoke and carbon monoxide alarms, including understanding chirp patterns, LED indicators, and resolving false alarms.

Guía de Instalación y Uso del Detector de Humo First Alert

manual

Instrucciones detalladas para la instalación, mantenimiento y uso del detector de humo y fuego First Alert, incluyendo consejos de seguridad y solución de problemas.