I smell natural gas in my house, and am wondering if that is the same as explosive gas? Will it detect natural gas?

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.

is this an explosive gas and carbon monoxide detector? it only says "carbon monoxide detector" on the actual product.

you may own Kidde 900-0076-01 KN-COPP-3 which looks similar but only detects carbon monoxide.

What is the sound level I need one for basement and need to hear on ground floor ?

For sure will be able to hear it.7 out of 10 sound level .

what happens if you do not use the battery at all?

It beeps constantly says LB or Low Battery. Basically annoys you to death until you unplug and get a battery

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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, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-in Wall with 9-Volt Battery Backup, Digital LED Display

Product ID: 782938885

Details

Alarm
Audible
Brand
Kidde
Color
White
Item Weight
16 ounces
Operating Humidity
5% to 95%
Power Source
Plug In

📊Digital LED CO level display

🔋9V battery backup

🔔85dB loud alarm

₩193792

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Description

🚨 Stay Ahead of Danger with Kidde’s Smart Gas Guardian!

SMART PEAK MEMORY - Records and recalls the highest CO level detected or last test time, keeping you informed and in control.
LOUD CLEAR ALERTS - 85-decibel alarm cuts through noise to instantly warn you of dangerous carbon monoxide or gas presence.
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.
PLUG PROTECT INSTANTLY - Effortless plug-in design for quick, no-fuss installation in any standard 120V outlet.

The Kidde KN-COEG-3 is a UL-listed plug-in carbon monoxide and explosive gas detector featuring advanced electrochemical and metal oxide sensors. It offers real-time digital CO level readouts, an 85dB alarm, and a 9V battery backup for uninterrupted protection. Designed for easy installation and peak level memory, it safeguards your home from invisible, odorless threats like CO, methane, propane, and natural gas with trusted reliability and smart alerts.

Specifications

ASIN	B0002EVNJ6
Alarm	Audible
Best Sellers Rank	#3,469 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Combination Gas & Carbon Monoxide Detectors #84 in Ear Care Products
Brand	Kidde
Built-In Media	9V Battery
Color	White
Customer Reviews	4.6 4.6 out of 5 stars (16,874)
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 Style	Clamshell Packaging
Sensor Type	Electrochemical
UPC	783961021658 640025010112 784908113054 784908011305
Unit Count	1 Count
Upper Temperature Rating	100 °F

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₩193792

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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