---
product_id: 649336512
title: "SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack"
brand: "first alert"
price: "609 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/649336512-smco500v-interconnect-battery-operated-combination-smoke-and-carbon-monoxide-alarm
store_origin: RO
region: Romania
---

# 85dB loud voice alerts Battery-powered, easy install Interconnects multiple alarms SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack

**Brand:** first alert
**Price:** 609 Lei
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay ahead of danger with smart, loud, and connected protection!

## Quick Answers

- **What is this?** SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack by first alert
- **How much does it cost?** 609 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/649336512-smco500v-interconnect-battery-operated-combination-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

- • **Dual Protection in One:** Combines smoke and carbon monoxide detection for comprehensive safety in a sleek, compact design.
- • **Precision Detection Tech:** Advanced sensors reduce false alarms from cooking smoke, so your peace of mind stays intact.
- • **Seamless Interconnectivity:** When one alarm sounds, all linked alarms alert you instantly—total home coverage without the hassle.
- • **Effortless Battery Operation:** No wiring needed—install and maintain with ease, perfect for busy professionals on the go.
- • **Clear Voice & Location Alerts:** Know exactly where the danger is with spoken warnings, eliminating guesswork in emergencies.

## Overview

The First Alert SMCO500V is a battery-operated combination smoke and carbon monoxide alarm featuring advanced Precision Detection technology to minimize false alarms. It interconnects wirelessly with compatible units, delivering clear voice alerts that specify the type and location of danger. Easy to install and maintain, this 2-in-1 device ensures reliable, early warnings to keep your home and loved ones safe.

## Description

The First Alert SMCO500V Interconnect Battery-Operated Combination Smoke & Carbon Monoxide with Voice & Location Alerts helps provide an early warning and guide your escape to safety. Also equipped with First Alert's Precision Detection advanced sensing technology that meets new industry standards.

Review: Very Effective, Well Worth the Money - I have purchased a property that was lacking in the smoke alarm department and had no wireless interconnection and these were the first choice. They are very easy to pair and install. Fair warning though, they are loud. I wore my noise cancelling earbuds and even through those, I can clearly hear them. The quality is good, you can hear them clearly when they give the location of which one went off. These things are also very functional as I had unintentionally set them off less than a couple weeks of installation. They will save your life in a fire. I highly recommend getting these as they are worth the investment.
Review: Easy installation and setup...worked when kitchen got smoky - Update: A little cooking accident caused a lot of smoke (no fire). The nearest alarm went off properly, and all of the linked alarms went off as well. Silencing the alarm required holding down the silence button for five seconds or so, which silenced all of the linked alarms. This review is based ONLY on the installation and setup. I just installed 7 units. The installation is very easy...took me about 60 seconds per unit to install the mounting rings.. You'll need a Phillips head screwdriver and a drill with a 3/16 bit for the mounting holes. I'm pretty handy with tools, but there was nothing involved in this that a novice should have difficulty with. Follow the instructions for where they should be mounted. There is a "dead zone" where walls and ceilings meet. Smoke detectors are ineffective in that zone. The previous owner of my home mounted all of the old detectors right in the dead zone. Oops. The programming is easy IF you read the directions and follow them exactly. Women should do fine; men will probably have to try programming a couple times before they figure out which simple step they overlooked. (I got it on the second attempt.) If you are overdue for new bifocals like I am, you might need a magnifying glass. The programming took less than a minute per unit when I did it correctly. Use hearing protection while you are programming and and testing. Seriously. All of the units will be going off at the same time on the table in front of you. At 85 decibels each, it is extremely loud, My total project time for installing all 7 was about 45 minutes hour from opening the box to putting up my tools. My units are spread out over three levels of the house (one in the basement, two on the first floor, one in an upstairs hallway, and one in each of three bedrooms). No issues with them communicating with each other. I tested each one individually and made certain it was communicating with all the others just to be sure. Running up and down all the stairs 7 times was a good workout. Again, hearing protection is advised. I have no doubt we will all be awakened if we ever have a fire in middle of the night. I really like the voice feature. If I have an alarm I will not have to go running through the house to figure out where the problem is. It clearly enunciates which unit is going off. Hopefully I will never find out how they operate in an emergency. I will update if I have any operational issues.

## Features

- First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
- Through early warning interconnect, when one alarm sounds, all compatible* alarms will sound
- Voice & location alerts tell you what the danger is and its location to help you escape safely
- Battery-operated alarm is easy to install and maintain
- Provides reliable 2-in-1 protection against both smoke and carbon monoxide

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | First Alert |
| Color | White |
| Item Weight | 10.9 Ounces |
| Power Source | Battery Powered |
| Product Dimensions | 5"D x 5"W x 2"H |
| Style | Precision Detection |

## Product Details

- **Brand:** First Alert
- **Style:** Precision Detection
- **Power Source:** Battery Powered
- **Color:** White
- **Product Dimensions:** 5"D x 5"W x 2"H
- **Item Weight:** 10.9 Ounces
- **Alarm:** Smoke and CO Alarm
- **Sensor Type:** Photoelectric
- **Global Trade Identification Number:** 00194160011843
- **Number of Items:** 1

## Images

![SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61CT1CiIWIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Effective, Well Worth the Money
*by A***S on September 17, 2025*

I have purchased a property that was lacking in the smoke alarm department and had no wireless interconnection and these were the first choice. They are very easy to pair and install. Fair warning though, they are loud. I wore my noise cancelling earbuds and even through those, I can clearly hear them. The quality is good, you can hear them clearly when they give the location of which one went off. These things are also very functional as I had unintentionally set them off less than a couple weeks of installation. They will save your life in a fire. I highly recommend getting these as they are worth the investment.

### ⭐⭐⭐⭐⭐ Easy installation and setup...worked when kitchen got smoky
*by S***M on January 13, 2014*

Update: A little cooking accident caused a lot of smoke (no fire). The nearest alarm went off properly, and all of the linked alarms went off as well. Silencing the alarm required holding down the silence button for five seconds or so, which silenced all of the linked alarms. This review is based ONLY on the installation and setup. I just installed 7 units. The installation is very easy...took me about 60 seconds per unit to install the mounting rings.. You'll need a Phillips head screwdriver and a drill with a 3/16 bit for the mounting holes. I'm pretty handy with tools, but there was nothing involved in this that a novice should have difficulty with. Follow the instructions for where they should be mounted. There is a "dead zone" where walls and ceilings meet. Smoke detectors are ineffective in that zone. The previous owner of my home mounted all of the old detectors right in the dead zone. Oops. The programming is easy IF you read the directions and follow them exactly. Women should do fine; men will probably have to try programming a couple times before they figure out which simple step they overlooked. (I got it on the second attempt.) If you are overdue for new bifocals like I am, you might need a magnifying glass. The programming took less than a minute per unit when I did it correctly. Use hearing protection while you are programming and and testing. Seriously. All of the units will be going off at the same time on the table in front of you. At 85 decibels each, it is extremely loud, My total project time for installing all 7 was about 45 minutes hour from opening the box to putting up my tools. My units are spread out over three levels of the house (one in the basement, two on the first floor, one in an upstairs hallway, and one in each of three bedrooms). No issues with them communicating with each other. I tested each one individually and made certain it was communicating with all the others just to be sure. Running up and down all the stairs 7 times was a good workout. Again, hearing protection is advised. I have no doubt we will all be awakened if we ever have a fire in middle of the night. I really like the voice feature. If I have an alarm I will not have to go running through the house to figure out where the problem is. It clearly enunciates which unit is going off. Hopefully I will never find out how they operate in an emergency. I will update if I have any operational issues.

### ⭐⭐⭐⭐⭐ Awesome Interconnected Smoke & Carbon monoxide detector (battery unit) with voice
*by J***W on August 15, 2025*

I've used previous iterations of this Battery operated (Wirelessly Interconnected) Smoke & Carbon Monoxide Detector (w/voice) in the past and this unit (SMCO500V) lives up to its predecessor. It's simple to use and setup (provided instructions are read - to pair the units wirelessly to work together). - They're Loud...but Not too loud - thankfully. - The mounts are a standard design to other smoke detectors (that can screw into the ceiling apparatus) and thus no new mounts were needed to attach these units in my home. - Battery-wise: If these units function like their predecessors - I'm sure it will last for several months on the eneloop AAs which I have been using for smoke detectors over the years. - Battery drawers are easy to pull open and get the batteries out. Simply push upwards from the bottom (of the battery drawer) to release and swap your batteries. - Haven't experienced any false Alarms with these particular units yet...but will update this review if I do. - All in all, a good device that lives up to its predecessor 👍

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-14*