---
product_id: 246713477
title: "Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3"
brand: "kidde"
price: "S/.1064"
currency: PEN
in_stock: false
reviews_count: 5
category: "Kidde"
url: https://www.desertcart.pe/products/246713477-kidde-ac-plug-in-carbon-monoxide-and-explosive-gas-detector
store_origin: PE
region: Peru
---

# Digital LED CO & gas levels 85dB loud alarm 9V battery backup Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3

**Brand:** kidde
**Price:** S/.1064
**Availability:** ❌ Out of Stock

## Summary

> 🚨 Stay ahead of danger with Kidde’s Nighthawk precision — because safety waits for no one!

## Quick Answers

- **What is this?** Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3 by kidde
- **How much does it cost?** S/.1064 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/246713477-kidde-ac-plug-in-carbon-monoxide-and-explosive-gas-detector)

## Best For

- kidde enthusiasts

## Why This Product

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

## Key Features

- • **Smart Digital Display:** Real-time CO levels & gas alerts keep you informed at a glance.
- • **Unmissable 85dB Alarm:** Loud, clear alerts ensure you never miss a critical warning.
- • **Reliable Battery Backup:** 9-volt battery keeps you safe even during power outages.
- • **Peak Memory & Smart-Hush:** Tracks last CO event & silences false alarms with a tap.
- • **Plug & Protect Instantly:** Effortless plug-in setup with included extension cord for flexible placement.

## Overview

The Kidde KN-COEG-3 is a plug-in carbon monoxide and explosive gas detector featuring advanced electrochemical sensors, a bright digital LED display showing real-time CO levels or gas alerts, and an 85-decibel alarm. It includes a 9V battery backup for power outages, peak level memory, and a Smart-Hush button to silence false alarms. UL listed with a 7-year lifespan and 5-year warranty, it’s designed for easy installation and reliable home safety.

## Description

The Kidde Carbon Monoxide Detector, Propane, Natural, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display uses electrochemical sensor technology to detect poisonous carbon monoxide, methane gas, sewer gas, propane gas or natural gas in your home and alerts you by sounding an 85-decibel alarm & displaying the amount of carbon monoxide detected or stating "gas" on the digital display when detecting explosive gas. Setup is easy as the Kidde carbon monoxide alarm plugs into a standard, 120V AC power outlet in your home, while a 9-volt alkaline battery (included) works as a backup in the event of a power failure. When carbon monoxide is detected, the digital display shows the level of carbon monoxide the alarm is sensing and updates every 15 seconds. Peak Level Memory records the last time carbon monoxide was detected or when the unit was tested. The Smart-Hush button silences the unit for approximately 8 minutes, which is helpful when this smoke detector carbon monoxide detector combo sounds from things like routine cooking or shower steam. Extension cord (included) allows for placement on a table or shelf. Install a carbon monoxide smoke detector combo on every level of your home and near bedrooms to help keep your family safe. UL Certified with a 10-year limited manufacturer's warranty. Meets requirements of UL 2034, UL217, NFPA72, (chapter 11 2002 edition) The State of California Fire Marshal, NFPA101 (One and two family dwellings) Federal Housing Authority (FHA), Housing and Urban Development (HUD).

Review: I'm about to wax poetic about the "Safety Siren Pro Series 1000" (or whatever demonic device this is). Let's be clear, this thing detects carbon monoxide like a bloodhound sniffs out a dropped hotdog at a picnic. No complaints there. If there's a rogue molecule of CO within a five-mile radius, this thing will know. It's like having a tiny, hyper-vigilant, gas-detecting chihuahua with a PhD in atmospheric chemistry. But, and this is a BIG but, when those batteries start to wane, oh. sweet merciful heavens... it's like a tiny, metal-clad demon has taken up residence in my home. The beeping... the BEEPING... isn't your standard, "Oh, batteries are low, please replace me" chirp. No, this is a sustained, high-pitched, soul-rending wail that sounds like a chorus of dying smoke detectors harmonizing with a dentist's drill. It starts subtly, a little "beep" here, a little "beep" there. You think, "Oh, I'll change them tomorrow." WRONG. You've just signed a pact with auditory torment. Within hours, it evolves into a relentless, rhythmic pulse of pure, unadulterated annoyance. My cat now hides under the sofa, my plants have visibly wilted, and I've started having flashbacks to that scene in Reefer Madness where the guy leaps out the window, convinced he's being chased by jazz demons. I swear, this thing is less a safety device and more a psychological warfare instrument. It's so effective at alerting you to low batteries that you'll replace them out of sheer, unbridled terror. You'll be sprinting to the store, batteries clutched in your trembling hands, like you're carrying the antidote to the apocalypse. Five stars for gas detection, minus a million for auditory assault. If you value your sanity, buy this thing, but keep a fresh pack of batteries on standby, and maybe invest in some industrial-grade earplugs. You've been warned.
Review: Good CO detector, has 12v backup battery and 110 v plug in main power supply with a long (4’cord). This is a replacement for the first one I purchased 5 years ago. These units have a 5 year design life once they are plugged in. After 5 years of operation they automatically stop working and sound an alarm and message to replace the unit. I like the display, bright and legible red lettering and the alarm is loud enough for me to hear it upstairs even though it’s located in the basement. Yes, I will probably purchase again.

## Features

- Easy Installation - simply plug-in to a standard, 120V outlet in your home
- 9-volt battery backup provides protection during a power outage
- Digital LED display shows the level of carbon monoxide the CO alarm is sensing or states "GAS" when explosive gas is present
- 85-decibel alarm announces when carbon monoxide or explosive gas is detected
- Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
- Test-Hush Button makes testing the detector or silencing false alarms easy
- Extension cord (included) allows for placement on a table or shelf
- UL Listed with a lifespan of 7 years and a 5-year limited warranty which begins when the alarm is powered on, if that date is unknown it should be assumed the alarm should be replaced.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002EVNJ6 |
| Alarm | Audible, Visual |
| Best Sellers Rank | #148,222 in Home Improvement ( See Top 100 in Home Improvement ) #463 in Home Security Alarms |
| Brand | Kidde |
| Country of Origin | USA |
| Generic Name | Combination Carbon Monoxide & Explosive Gas Detector |
| Global Trade Identification Number | 00784908011305, 00784908113054 |
| Item Weight | 454 g |
| Item model number | KN-COEG-3 |
| Manufacturer | Kidde |
| Net Quantity | 1.0 Count |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 10.2D x 10.2W x 5.1H Centimeters |
| Sensor Type | Electrochemical |
| Style | Digital |
| UPC | 783961021658 640025010112 784908113054 784908011305 |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Alarm:** Audible, Visual
- **Brand:** Kidde
- **Global Trade Identification Number:** 00784908011305, 00784908113054
- **Item Weight:** 454 g
- **Number of Items:** 1
- **Power Source:** Battery Powered
- **Product Dimensions:** 10.2D x 10.2W x 5.1H Centimeters
- **Sensor Type:** Electrochemical
- **Style:** Digital
- **Upper Temperature Rating:** 100 Degrees Fahrenheit

## Images

![Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3 - Image 1](https://m.media-amazon.com/images/I/31inVdY76AL.jpg)
![Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3 - Image 2](https://m.media-amazon.com/images/I/412etyM+A+L.jpg)
![Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3 - Image 3](https://m.media-amazon.com/images/I/41CTmdcdxhL.jpg)
![Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3 - Image 4](https://m.media-amazon.com/images/I/41QbJw6v1gL.jpg)
![Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3 - Image 5](https://m.media-amazon.com/images/I/41tEYprzayL.jpg)

## Questions & Answers

**Q: I smell natural gas in my house, and am wondering if that is the same as explosive gas? Will it detect natural gas?**
A: As someone who went through firefighter 1 and 2 and got certified, yes. Natural gas will be detected by an "explosive gas detector." These detectors detect when natural gas or propane is approaching a percentage of the "Lower Explosive Limit", the percentage of the gas that needs to fill the airspace for combustion to occur. Since the two gases are different but are usually  detected by the same sensor, they will go off for the gas that has a lower LEL for safety. If it goes off, leave your house imediately and call 911 for the fire department. Yes Natural gas has additives that make it smell like rotten eggs, but you can get used to this smell or it can be scrubbed entirely from the gas by dirt/soil. The latter is the cause of unexpected explosions in neighborhoods you may have periodically heard about in the news. Only way to know for sure is a detector.

**Q: is this an explosive gas and carbon monoxide detector? it only says "carbon monoxide detector" on the actual product.**
A: you may own Kidde 900-0076-01 KN-COPP-3  which looks similar but only detects carbon monoxide.

**Q: What is the sound level  I need one for basement and need to hear on ground floor ?**
A: For sure will be able to hear it.7 out of 10 sound level .

**Q: what happens if you do not use the battery at all?**
A: It beeps constantly says LB or Low Battery.  Basically annoys you to death until you unplug and get a battery

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 25 March 2025*

I'm about to wax poetic about the "Safety Siren Pro Series 1000" (or whatever demonic device this is). Let's be clear, this thing detects carbon monoxide like a bloodhound sniffs out a dropped hotdog at a picnic. No complaints there. If there's a rogue molecule of CO within a five-mile radius, this thing will know. It's like having a tiny, hyper-vigilant, gas-detecting chihuahua with a PhD in atmospheric chemistry. But, and this is a BIG but, when those batteries start to wane, oh. sweet merciful heavens... it's like a tiny, metal-clad demon has taken up residence in my home. The beeping... the BEEPING... isn't your standard, "Oh, batteries are low, please replace me" chirp. No, this is a sustained, high-pitched, soul-rending wail that sounds like a chorus of dying smoke detectors harmonizing with a dentist's drill. It starts subtly, a little "beep" here, a little "beep" there. You think, "Oh, I'll change them tomorrow." WRONG. You've just signed a pact with auditory torment. Within hours, it evolves into a relentless, rhythmic pulse of pure, unadulterated annoyance. My cat now hides under the sofa, my plants have visibly wilted, and I've started having flashbacks to that scene in Reefer Madness where the guy leaps out the window, convinced he's being chased by jazz demons. I swear, this thing is less a safety device and more a psychological warfare instrument. It's so effective at alerting you to low batteries that you'll replace them out of sheer, unbridled terror. You'll be sprinting to the store, batteries clutched in your trembling hands, like you're carrying the antidote to the apocalypse. Five stars for gas detection, minus a million for auditory assault. If you value your sanity, buy this thing, but keep a fresh pack of batteries on standby, and maybe invest in some industrial-grade earplugs. You've been warned.

### ⭐⭐⭐⭐⭐ Review
*by J***E on 3 January 2026*

Good CO detector, has 12v backup battery and 110 v plug in main power supply with a long (4’cord). This is a replacement for the first one I purchased 5 years ago. These units have a 5 year design life once they are plugged in. After 5 years of operation they automatically stop working and sound an alarm and message to replace the unit. I like the display, bright and legible red lettering and the alarm is loud enough for me to hear it upstairs even though it’s located in the basement. Yes, I will probably purchase again.

### ⭐⭐⭐⭐⭐ Review
*by J***M on 5 February 2023*

No complaints about this, but I have no way to really test its accuracy and sensitivity, so I have to take that part on faith. But the Kidde name warrants that faith. I do really like the device. MANY of these have a fixed AC plug on the back that requires one to place it at an outlet or to run an extension cord to the correct location for mounting. In our case, we are monitoring for natural gas, and that means the power source must be up near the ceiling. Of course, homes rarely have power outlets near the ceiling, and if they do, those are dedicated to TVs and such. So the only option is to run an extension cord or power strip to the proper location, mount that to the wall somehow, and then plug in the device into the power supply cord. That's ridiculous and unsightly. Those will work great for propane, but not for natural gas. The Kidde has a long (about 6'), low voltage extension cord attached to a conventional wall wart (transformer power supply) on the end that reaches down to a convenient outlet and feeds power to the device in a proper location reasonably near the ceiling. Installation is easy with the small "mollys" to hold adequately in sheetrock. The device is light enough that it doesn't take much to hold it securely. The LED display, which, I believe, is a continuous readout of CO levels, is large and bright enough to read from across the room. I've installed this primarily to monitor for natural gas leaks. Since moving in, we have removed THREE natural gas appliances: a gas range, a gas "fireplace" and a gas hot water heater. The only remaining gas appliance is the furnace. With a running furnace and three capped off gas spigots, this detector provides peace of mind about gas leaks. The CO detector is a bonus, and it's good to know that the furnace is properly vented and not leaking combustion byproducts. I'm pleased with this purchase, and I recommend it.

## Frequently Bought Together

- Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display
- Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
- Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pe/products/246713477-kidde-ac-plug-in-carbon-monoxide-and-explosive-gas-detector](https://www.desertcart.pe/products/246713477-kidde-ac-plug-in-carbon-monoxide-and-explosive-gas-detector)

---

*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-24*