--- product_id: 782938885 title: "Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-in Wall with 9-Volt Battery Backup, Digital LED Display" brand: "kidde" price: "₱11442" currency: PHP in_stock: true reviews_count: 8 category: "Kidde" url: https://www.desertcart.ph/products/782938885-kidde-carbon-monoxide-detector-propane-natural-methane-and-explosive-gas store_origin: PH region: Philippines --- # Digital LED CO level display 9V battery backup 85dB loud alarm Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-in Wall with 9-Volt Battery Backup, Digital LED Display **Brand:** kidde **Price:** ₱11442 **Availability:** ✅ In Stock ## Summary > 🚨 Stay Ahead of Invisible Threats with Kidde’s Smart Gas & CO Guardian ## Quick Answers - **What is this?** Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-in Wall with 9-Volt Battery Backup, Digital LED Display by kidde - **How much does it cost?** ₱11442 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/782938885-kidde-carbon-monoxide-detector-propane-natural-methane-and-explosive-gas) ## 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 - • **Peak Memory Recall:** Smart Peak Level Memory tracks and displays the highest CO reading since last reset—stay informed, stay safe. - • **Uninterrupted Safety:** 9-volt battery backup ensures continuous monitoring even during power outages—never lose protection. - • **Real-Time Gas Insights:** Digital LED display updates every 15 seconds with precise CO levels or 'GAS' alerts for explosive gases. - • **Smart-Hush Convenience:** Temporarily silences nuisance alarms for 8 minutes, perfect for cooking or steam without compromising safety. - • **Plug & Protect Instantly:** Effortless plug-in design for quick, no-fuss installation in any standard 120V outlet. ## Overview The Kidde KN-COEG-3 is a UL-listed plug-in carbon monoxide and explosive gas detector featuring an electrochemical sensor, 9V battery backup, and a digital LED display that continuously monitors and reports CO levels and explosive gases like methane and propane. Its 85-decibel alarm and peak memory function provide reliable, real-time alerts to protect your home and family from silent, deadly gases. Easy to install and backed by a 5-year warranty, it’s a must-have for modern, safety-conscious households. ## Description desertcart.com Protect your family from the dangers of carbon monoxide (CO), methane, and propane exposure with the Kidde KN-COEG-3 Nighthawk Plug-In Carbon Monoxide and Explosive Gas Alarm. The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO and explosive gas. The digital display shows if gas is present indicates CO levels in parts per million, allowing you to see if, how, and when levels change.Advanced Technology in an Easy-to-Install, Plug-In DesignDesigned for home use, the Kidde KN-COEG-3 Nighthawk is a UL-listed, A/C-powered, plug-in alarm that utilizes sophisticated electronic components and sensor technology to protect you and your family from the dangers of CO, methane, and propane exposure. It plugs directly into a standard A/C outlet and includes a 9-volt battery backup that provides continuous monitoring--even during power outages.The Dangers of Carbon Monoxide, Methane, and Propane ExposureThe leading cause of accidental poisoning deaths in North America, carbon monoxide (CO) is often referred to as the silent killer because it's odorless, tasteless, and invisible. Carbon monoxide poisoning can come about via a number of sources, including everyday items and appliances in your home or office. And because symptoms of CO poisoning mimic the flu or other common illnesses it can often go undiagnosed.Likewise, methane and propane gases are commonly used in homes for cooking, heating, and water heating. Although it happens rarely, gas leaks can sometimes occur inside the home, increasing the risk of fire or explosion.Audible Alarm Pattern Alerts you to Elevated CO and Gas LevelsWhen placed on every level of your home, alarms like the KN-COEG-3 Nighthawk can help protect everyone in the house by giving you an unmistakable signal when gas levels have reached an unhealthy point. If unhealthy levels of CO are detected, the alarm will emit four quick audible beeps every five seconds until either levels decrease or the reset button is pressed. If methane gas or propane gas is detected, the alarm will emit beeps every other second with "GAS" shown in the display.Easy-to-Read Digital Display Shows CO LevelsThe KN-COEG-3 Nighthawk is preferred among traditional CO and explosive gas alarms because of its digital display. This display clearly shows levels of CO that the unit has detected and stored-- from 30 to 999 ppm--and it updates every 15 seconds to indicate any abrupt changes or alarming trends. The display also shows the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous display also shows if gas is present.LED Shows Sensor StatusWith the KN-COEG-3 Nighthawk, you never have to wonder if the sensor is functioning properly. A blinking dot in the lower right-hand corner of the display denotes normal operation, so you can trust that it's working. In addition, you can test alarm function by pressing the test/reset button at any time to verify that the horn and electric circuitry are operating properly.Convenient Mounting OptionsThe KN-COEG-3 Nighthawk has a low-profile design that makes it suitable for any room in your home. The detector can be plugged into any standard A/C outlet; it's plug can be snapped into the back of the unit and can be rotated so the alarm remains vertical, independent of whether the electrical socket is mounted vertically or horizontally. In addition, the alarm comes with a 6-foot extension cord, so the unit can be plugged into the wall outlet and then placed on a table or shelf. For the most thorough protection, place an alarm on every level of your home.The UL-listed Kidde KN-COEG-3 Nighthawk has a seven-year life and is backed by a five-year limited warranty.About Kidde: A UTC Fire and Security BrandRenowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb Detector Lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.What's in the BoxKidde KN-COEG-3 Nighthawk Carbon Monoxide and Explosive Gas Alarm, 9-volt battery, mounting hardware, and installation guide. Product 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). From the Manufacturer The leading cause of accidental poisoning deaths in North America, Carbon Monoxide is odorless, tasteless and invisible. It is a silent killer. Kidde CO alarms include the most accurate sensing technology available, the patented Nighthawk electrochemical sensor. This unit is an AC powered, plug-in CO and explosive gas alarm that protects you and your family from two deadly threats. The 900-0113 includes 9V battery back up that provides protection during a power outage, when AC only units can not provide protection. By pressing the Peak Level Button you can see the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous digital display shows you the level of carbon monoxide, if any. The unit is sensing as well as if gas is present. The gas sensor is a metal oxide sensor designed to detect natural gas , methane or propane. Install at least one CO alarm on every floor and in sleeping areas. Make sure CO alarms are at least 15 feet away from cooking or heating appliances to prevent false alarms. Replace CO alarms every 5 to 7 years to benefit from the latest technology upgrades. Review: Works great but when 9v gets low it's the most annoying thing in the world - 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: Impressive performance - Good: The perfect alarm for a detached garage. Detects smoke, CO, natural gas AND propane, with a display on the front that shows levels of same even when they're too low to trigger the alarm. Alarm is loud enough to hear in the house, eight feet away. Plugs directly into an outlet, or you can detach the power supply and mount the alarm away from the outlet. Pricey, but you get a lot for that price. Bad: Not the most stylish unit. But, in the garage, who cares? At this price point, would have preferred a 10-year lithium backup battery in place of a 9-volt. Bottom line: This is the second unit of this type I've owned, the first reaching end of life after 10 years (CO alarms wear out eventually) and cheeping nonstop to announce same. I tested this one, briefly, with my lawn mower running in a closed garage (with me outside a cracked side door, just in case.) It did indeed start reporting CO levels at around 40 ppm, which steadily climbed until the alarm sounded at about 100 ppm. (Whereupon I held my breath, quickly went in, shut down the mower, opened the big door, went back out and waited until the CO level became too low to measure.) The only additional function I wish it had is a remote link, wifi or whatever, to notify me when I'm unable to hear the alarm. No complaints otherwise. Five stars. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002EVNJ6 | | Alarm | Audible | | Best Sellers Rank | #11,243 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Combination Gas & Carbon Monoxide Detectors #194 in Ear Care Products | | Brand | Kidde | | Built-In Media | 9V Battery | | Color | White | | Customer Reviews | 4.6 out of 5 stars 16,884 Reviews | | Enclosure Material | Plastic | | Global Trade Identification Number | 00784908011305, 00784908113054 | | Item Dimensions D x W x H | 4"D x 4"W x 2"H | | Item Type Name | Combination Carbon Monoxide & Explosive Gas Detector | | Item Weight | 16 ounces | | Manufacturer | Kidde | | Manufacturer Warranty Description | 5 Year Limited | | Mfr Part Number | KI-21006677 | | Model Number | KN-COEG-3 | | Number of Items | 1 | | Operating Humidity | 5% to 95% relative humidity, non-condensing | | Power Source | Plug In | | Product Dimensions | 4"D x 4"W x 2"H | | Product Style | Clamshell Packaging | | Sensor Type | Electrochemical | | Style | Clamshell Packaging | | UPC | 783961021658 640025010112 784908113054 784908011305 | | Unit Count | 1 Count | | Upper Temperature Rating | 100 °F | ## Product Details - **Alarm:** Audible - **Brand:** Kidde - **Color:** White - **Item Weight:** 16 ounces - **Operating Humidity:** 5% to 95% relative humidity, non-condensing - **Power Source:** Plug In - **Product Dimensions:** 4"D x 4"W x 2"H - **Sensor Type:** Electrochemical - **Style:** Clamshell Packaging - **Upper Temperature Rating:** 100 °F ## Images ![Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-in Wall with 9-Volt Battery Backup, Digital LED Display - Image 1](https://m.media-amazon.com/images/I/71qAcXzl4AL.jpg) ## Available Options This product comes in different **Style** options. ## 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 ### ⭐⭐⭐⭐⭐ Works great but when 9v gets low it's the most annoying thing in the world *by J***N on March 25, 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. ### ⭐⭐⭐⭐⭐ Impressive performance *by R***. on January 9, 2025* Good: The perfect alarm for a detached garage. Detects smoke, CO, natural gas AND propane, with a display on the front that shows levels of same even when they're too low to trigger the alarm. Alarm is loud enough to hear in the house, eight feet away. Plugs directly into an outlet, or you can detach the power supply and mount the alarm away from the outlet. Pricey, but you get a lot for that price. Bad: Not the most stylish unit. But, in the garage, who cares? At this price point, would have preferred a 10-year lithium backup battery in place of a 9-volt. Bottom line: This is the second unit of this type I've owned, the first reaching end of life after 10 years (CO alarms wear out eventually) and cheeping nonstop to announce same. I tested this one, briefly, with my lawn mower running in a closed garage (with me outside a cracked side door, just in case.) It did indeed start reporting CO levels at around 40 ppm, which steadily climbed until the alarm sounded at about 100 ppm. (Whereupon I held my breath, quickly went in, shut down the mower, opened the big door, went back out and waited until the CO level became too low to measure.) The only additional function I wish it had is a remote link, wifi or whatever, to notify me when I'm unable to hear the alarm. No complaints otherwise. Five stars. ### ⭐⭐⭐⭐⭐ Highly recommend! *by L***X on August 5, 2026* Great product and easy installation process. Sits near my kitchen area but far away enough to detect smoke. ## 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.ph/products/782938885-kidde-carbon-monoxide-detector-propane-natural-methane-and-explosive-gas](https://www.desertcart.ph/products/782938885-kidde-carbon-monoxide-detector-propane-natural-methane-and-explosive-gas) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-09-30*