10 Best gas detectors of 2025

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1

KLEIN TOOLS
Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries
Main highlights

Wide Detection Range
Detects gas concentrations from 50 to 10,000 ppm for versatile monitoring.

Ideal for Leak Detection
Perfect for identifying gas leaks in residential and commercial spaces.

Praised Feature: Accuracy
Highly praised for its accuracy in finding hidden gas leaks.
9.9

Exceptional

Our Rating

9.1
Simple to use

8.7
Precision

8.4
worth the money
How do we rank?

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Based on millions of stores and reviews

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Value for Money

2

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

16% Off
Main highlights

Easy Installation with Battery Backup
Simply plug into a 120V outlet; 9V battery ensures operation during power outages.

Ideal for Gas and CO Monitoring
Perfect for homes with natural gas, propane, or potential CO leaks.

Highly Rated Audible Alarm
Customers praise the loud 85-decibel alarm for effective alerting.
9.6

Exceptional

Our Rating

9.7
Noise level

9.5
Easy installation

9.5
clearly written
3

TOPTES
PT199 Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange
Main highlights

Comprehensive Gas Detection
Detects LPG, methane, propane, and more, preventing gas explosions.

Ideal for Home and RV Use
Perfect for homeowners and RV enthusiasts with gas appliances.

Highly Praised Accuracy
Customers appreciate its accuracy in pinpointing gas leaks.
Key specs
- Alarm:Audible, Visual
- Dimensions:0.79D x 0.79W x 6.5H
- Power:Battery Powered
- Sensor:Gas Sensitive Semiconductor GSS
- Detection Range:N/A
9.4

Excellent

Our Rating

9.7
Simple to use

9.5
worth the money

9.5
Easy installation
4

NICGOL

4-in-1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black)

11% Off
9.3

Excellent

Our Rating
5

D MODUN

Gas Detector, Natural Gas | LPG | City Coal Gas Leak Detector, Plug-in Sensor Gas Monitor with Sound Alarm and LED Display, Methane Propane Butane Combustible Gas Alarm for Kitchen RV Garage (Black)
9.2

Excellent

Our Rating
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6

TOPTES
PT520A Natural Gas Detector, Gas Leak Detector with 17-Inch Gooseneck, Locating The Source Like Propane, Methane, and Butane for Home and RV (Includes Battery x3) - Orange
Main highlights

Accurate Detection of Combustible Gases
The TOPTES PT520A detects methane, propane, and other gases quickly and accurately.

Ideal for Home and RV Use
Perfect for detecting gas leaks in homes, RVs, and tight spaces.

Praised for Ease of Use
Customers love the easy setup, operation, and clear instructions.
Key specs
- Alarm:Audible & Visual
- Dimensions:11.22D x 2.36W x 5.31H
- Power:Battery Powered
- Sensor:Electrochemical
- Detection Range:50 to 10,000 ppm
9.1

Excellent

Our Rating

9.7
worth the money

9.7
Simple to use

9.3
Precision
7

TOPTES
Natural Gas Detector, TopTes PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Leak Sources Like Methane, Propane for Home (Includes Battery x2)-Orange
Main highlights

Quick and Easy Leak Detection
Detects combustible gas leaks within 0.5 to 3 seconds with visual and audible alarms.

Ideal for Home Safety
Perfect for homeowners with gas appliances, BBQ grills, and fireplaces.

Praised for Ease of Use
Customers love its compact size and straightforward operation.
Key specs
- Alarm:Visual & Audible Alarm
- Dimensions:8.15 x 2.68 x 1.69 inches
- Power:Battery Powered
- Sensor:Combustible Gas Detector
- Detection Range:50 to 1,000 ppm
9.0

Excellent

Our Rating

9.7
Simple to use

9.5
worth the money

9.5
Precision
8

Firlarm

Firlarm Natural Gas Detector, Plug-in Gas Leak Detector for Home, Propane Leak Alarm for RV and Kitchen, with LED Digital Display

18% Off
8.9

Very Good

Our Rating
9

Wintact

Wintact Gas Leak Detector, Portable Combustible Gas Leak Detector Pen, Natural Gas Sniffer Test Methane, Propane, Ethane, Toluene, Butane for RV, Home

15% Off
8.8

Very Good

Our Rating
10

Nsrrye

Carbon Monoxide Detectors,Plug in CO and Natural Gas Detector, Combination Gas & Carbon Monoxide Detectors for Travel with Temperature Humidity Display, 4 in 1 CO & Gas Detector for Home/Travel

50% Off
8.5

Good

Our Rating

10 Best gas detectors of 2025

1

Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries

9.1

8.7

8.4

How do we rank?

How do we rank?

Analyzing top stores

2

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

9.7

9.5

9.5

3

PT199 Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

9.7

9.5

9.5

4

4-in-1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black)

5

Gas Detector, Natural Gas | LPG | City Coal Gas Leak Detector, Plug-in Sensor Gas Monitor with Sound Alarm and LED Display, Methane Propane Butane Combustible Gas Alarm for Kitchen RV Garage (Black)

6

PT520A Natural Gas Detector, Gas Leak Detector with 17-Inch Gooseneck, Locating The Source Like Propane, Methane, and Butane for Home and RV (Includes Battery x3) - Orange

9.7

9.7

9.3

7

Natural Gas Detector, TopTes PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Leak Sources Like Methane, Propane for Home (Includes Battery x2)-Orange

9.7

9.5

9.5

8

Firlarm Natural Gas Detector, Plug-in Gas Leak Detector for Home, Propane Leak Alarm for RV and Kitchen, with LED Digital Display

9

Wintact Gas Leak Detector, Portable Combustible Gas Leak Detector Pen, Natural Gas Sniffer Test Methane, Propane, Ethane, Toluene, Butane for RV, Home

10

Carbon Monoxide Detectors,Plug in CO and Natural Gas Detector, Combination Gas & Carbon Monoxide Detectors for Travel with Temperature Humidity Display, 4 in 1 CO & Gas Detector for Home/Travel

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