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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 FA220KP, FA270KP, FA570KP Remote Keypads Installation and Setup Guide

installation guide

Comprehensive installation and setup guide for First Alert FA220KP, FA270KP, and FA570KP remote keypads. Covers features, wiring, specifications, and address configuration for professional security systems.

First Alert FA220KP, FA270KP, FA570KP Remote Keypads: Installation & Setup Guide

Installation Guide

Comprehensive installation and setup guide for First Alert FA220KP, FA270KP, and FA570KP addressable remote keypads. Learn about features, wiring, address configuration, and specifications.

First Alert FA1600C/CA/CB: User Guide for Fire and Burglary Security Systems with Scheduling

User Guide

Comprehensive user guide for the First Alert FA1600C/CA/CB Fire and Burglary Partitioned Security Systems with Scheduling. Learn about system features, operation, arming/disarming, and maintenance.

First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm Installation Guide

Installation Guide

Installation guide for the First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm (SMCO600NV-AC). Covers setup, placement, wiring, maintenance, troubleshooting, and regulatory information.

First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm Installation Guide

Installation Guide

This guide provides detailed instructions for installing and setting up the First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm (SMC0600NV-AC). It covers initial setup via the First Alert…

First Alert Smoke Alarms User Manual

User Manual

User manual for First Alert AC Powered Ionization Smoke Alarms (Models 9120, 9120B) covering installation, operation, maintenance, safety tips, and troubleshooting.

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

Quick Start Guide

Quick start guide for the First Alert SC5 Wired Smart Smoke & Carbon Monoxide Alarm (SMCO600NV-AC). Includes installation, setup, functions, maintenance, and regulatory information.

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

Technical Specification

Comprehensive technical specifications, features, and installation guide for the First Alert SMCO410 smart smoke and carbon monoxide alarm. Includes Z-Wave Plus compatibility and Ring integration.

First Alert Digital Fire Theft Safe Operation and Installation Guide

Operation & Installation Guide

Comprehensive operation and installation guide for First Alert Digital Fire Theft Safes, models 2054DF, 2084DF, and 2118DF. Learn how to install batteries, program passcodes, open/close the safe, install shelves, bolt-down…

First Alert CO606 Carbon Monoxide Alarm User's Manual

User's Manual

Comprehensive user manual for the First Alert CO606 plug-in carbon monoxide alarm with battery backup. Learn about installation, operation, safety, maintenance, and troubleshooting.

First Alert Onelink Wi-Fi Smoke + Carbon Monoxide Alarm User's Manual AC10-500

User's Manual

Comprehensive user manual for the First Alert Onelink AC10-500 Wi-Fi Smoke + Carbon Monoxide Alarm, covering installation, operation, maintenance, troubleshooting, and safety information. Learn about alarm features, placement, setup, and…

First Alert Onelink THERM-500 Wi-Fi Thermostat Installation Manual

Installation Guide

Comprehensive installation manual for the First Alert Onelink THERM-500 Wi-Fi Thermostat. Covers compatibility, removal, wiring, setup, and troubleshooting for smart home climate control.