---
product_id: 120753774
title: "First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location"
brand: "first alert"
price: "€ 5.68"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.nl/products/120753774-first-alert-fat1039839-wireless-interconnected-smoke-and-carbon-monoxide-alarm
store_origin: NL
region: Netherlands
---

# Wireless interconnectivity for whole-home alerts Battery-powered for flexible placement Voice location alerts for instant clarity First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location

**Brand:** first alert
**Price:** € 5.68
**Availability:** ❌ Out of Stock

## Summary

> 🚨 Stay a step ahead—because safety should never be silent.

## Quick Answers

- **What is this?** First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location by first alert
- **How much does it cost?** € 5.68 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/120753774-first-alert-fat1039839-wireless-interconnected-smoke-and-carbon-monoxide-alarm)

## Best For

- first alert enthusiasts

## Why This Product

- Trusted first alert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Loud 85dB Alarm:** High-decibel alert ensures you and your loved ones wake up or respond immediately to danger.
- • **Dual Sensor Technology:** Advanced photoelectric smoke and electrochemical CO sensors detect threats faster and more accurately.
- • **Power Anywhere, Anytime:** Battery-operated design means no wiring hassles—install it wherever peace of mind is needed.
- • **Clear Voice Location Alerts:** Know exactly where danger strikes with precise voice notifications—no guessing, no panic.
- • **Seamless Wireless Safety Network:** Connect multiple alarms effortlessly for synchronized protection across your home.

## Overview

The First Alert FAT1039839 is a battery-powered smoke and carbon monoxide alarm featuring wireless interconnectivity to link multiple units for comprehensive home safety. Equipped with photoelectric and electrochemical sensors, it delivers precise, loud 85dB alerts and clear voice notifications pinpointing the hazard location. With easy installation anywhere and a 7-year limited warranty, it’s engineered for reliable, smart protection.

## Description

The First Alert SCO501CN3ST Wireless Interconnected Smoke and Carbon Monoxide Alarm with Voice and Location detects both smoke and carbon monoxide. It is a wireless-enabled, battery-operated detector that features an 85dB alarm plus a voice alarm to let you know where the danger is. This technology allows other compatible First Alert wireless-enabled alarms located in several areas of your home to communicate with each other, alerting you to a problem early even when it's on another floor. The smoke and carbon monoxide detector features a photoelectric smoke sensor and electrochemical carbon monoxide sensor.

## Features

- Battery-operated Smoke & Carbon Monoxide Alarm Can Be Installed Anywhere
- Connects Multiple Alarms Together For Wireless Safety Network
- Voice Alarm Gives Clear Indication Of Where The Problem Is Located
- Features Photoelectric Smoke Sensor & Electrochemical Carbon Monoxide Sensor
- Loud 85db Alarm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | First Alert |
| Power Source | Battery Powered |
| Item Weight | 0.6 Pounds |
| Sensor Type | Electrochemical, Photoelectric |
| Global Trade Identification Number | 00029054019059 |
| Number of Items | 1 |
| Manufacturer | First Alert |
| UPC | 029054019059 |
| Part Number | 1039839 |
| Item Weight | 9.6 ounces |
| Product Dimensions | 7 x 2.5 x 8.5 inches |
| Item model number | FAT1039839 |
| Item Package Quantity | 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Description Pile | AA |
| Warranty Description | Limited 7 Years |

## Product Details

- **Brand:** First Alert
- **Power Source:** Battery Powered
- **Item Weight:** 0.6 Pounds
- **Sensor Type:** Electrochemical, Photoelectric
- **Global Trade Identification Number:** 00029054019059
- **Number of Items:** 1
- **Manufacturer:** First Alert
- **UPC:** 029054019059

## Images

![First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location - Image 1](https://m.media-amazon.com/images/I/61LXHGRqXuL.jpg)
![First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location - Image 2](https://m.media-amazon.com/images/I/612OcuTDd0L.jpg)
![First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location - Image 3](https://m.media-amazon.com/images/I/61SrdIzlVFL.jpg)
![First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location - Image 4](https://m.media-amazon.com/images/I/713HswA4TFL.jpg)
![First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location - Image 5](https://m.media-amazon.com/images/I/51j+jCMoSTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Smoke / gas alarm
*by K***N on November 1, 2024*

Nice product, easy installation, quick delivery

### ⭐ 2024 version won't network at all!!
*by C***0 on August 22, 2024*

Ordered 6 units. 4 work fine (black logos, 2022 version). The other 2 won't network with anything at all, not even each other (white logos, 2023 version). Please replace with 2 more of 2022 verson!Notice how the other reviewer with the same problem also had the 2024 version. That means the problem has been unsolved for over 1 year!

### ⭐⭐⭐ Too loud, damages ears
*by T***L on August 9, 2020*

Rarely does a product work too well. The sound of this alarm is so loud I may have damaged my ears testing it. I still have a ringing in my ear 10 hours later. Seriously, if you buy this thing, wear ear plugs when testing it. It’s startling. Buyer beware.

## Frequently Bought Together

- First Alert FAT1039839 Wireless Interconnected Smoke & Carbon Monoxide Alarm with Voice & Location
- Duracell Coppertop AA Batteries with Power Boost Ingredients, 24 Count Pack Double A Battery with Long-lasting Power, Alkaline AA Battery for Household and Office Devices

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**Shop now:** [https://www.desertcart.nl/products/120753774-first-alert-fat1039839-wireless-interconnected-smoke-and-carbon-monoxide-alarm](https://www.desertcart.nl/products/120753774-first-alert-fat1039839-wireless-interconnected-smoke-and-carbon-monoxide-alarm)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-27*