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

4.5 4.5 out of 5 stars 1,668 ratings

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About this item

  • WIDE DETECTION RANGE: Detect gas concentrations from approximately 50 to 10,000 ppm* (*based on Methane) for versatile gas monitoring
  • ADJUSTABLE SENSITIVITY: Choose between High (50 to 1000 ppm) and Low (1000 to 10,000 ppm) sensitivity levels for accurate gas detection
  • ENHANCED VISUAL AND AUDIBLE ALERTS: Stay alerted with five red LED's (visual) and 85dB audible alerts that intensify as gas concentration increases
  • EASY CALIBRATION: Automatic zero-point calibration at power-up ensures accuracy; flashing lights during self-calibration, no gas presence indicated
  • FLEXIBLE GOOSENECK DESIGN: Expand the sensor's reach with the 18-inch flexible gooseneck that conveniently clips onto the meter for storage
  • COMFORTABLE AND DURABLE: Over-molded body provides a comfortable grip for prolonged use and is designed to withstand demanding environments
  • BATTERY SAVING FEATURE: Auto power-off after 10 minutes of non-usage conserves battery life, ensuring long-lasting operation
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Customer ratings by feature

Easy to use
4.4 4.4
Accuracy
4.2 4.2
Value for money
4.1 4.1

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$119.00
Get it as soon as Sunday, Mar 31
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Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries
Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries
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Price-15% $119.00
List:$140.00
$65.99-12% $22.99
List:$25.99
-14% $55.99
Typical:$64.99
$34.99$49.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to use
4.4
4.4
4.7
4.4
5.0
4.8
Accuracy
4.2
3.7
4.5
3.7
4.5
Easy to read
4.1
4.7
4.1
5.0
4.7
Value for money
4.1
4.0
4.6
4.0
Easy to install
5.0
4.6
5.0
Sold By
Amazon.com
Intendvision Direct
Toptes Direct
Intendvision Direct
Toptes Direct
Toptes Direct
power source
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
sensor type
Gas Sensitive Semiconductor (GSS)
Cataly
Gas Sensitive Semi Conductor
upper temperature rate
122 degrees fahrenheit
50 degrees celsius
50 degrees celsius
50 degrees celsius
style
Combustible Gas
HT601B Gas Sniffer
modern
INTA21 Gas Sniffer
Compact
PT520A+ Rechargeable
alarm
Audible
Audible, Visual
Audible, Visual
Audible, Visual
Audible, Visual
Audible
operating humidity
85 percent
95 percent
70 percent
80 percent
95 percent

From the manufacturer

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About Klein Tools

As an American manufacturer of hand tools for more than 160 years, Klein Tools makes premium-quality, professional-grade tools that deliver performance, durability and precision. Our team continues to put six generations of expertise into each tool by using the highest quality materials and superior workmanship.

Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day Since 1857.

Combustible Gas Leak Detector

The ET120 is an easy-to-use tester that provides audible and visual alarms in the presence of methane, propane and other combustible gases at concentrations as low as 50 ppm, making it the perfect choice for HVAC professionals.

  • Detection range: Approximately 50 to 10,000 ppm* (*based on Methane)
  • Two levels of sensitivity: High (Approximately 50 to 1000 ppm) and Low (Approximately 50 to 10,000 ppm)
  • Five red LED's (visual) and 85dB audible alerts that increase with gas concentration
  • Automatic zero-point calibration at power-up (lights will flash during self-calibration; this does not indicate the presence of gas)
  • 18-Inch flexible gooseneck expands sensor's reach; clips onto meter for storage
  • Over-molded body for comfortable grip
  • Auto power-off after 10 minutes of non-usage conserves battery life
  • Includes detector, 4xAAA batteries, instruction manual and storage pouch

Features

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Detection range: Approximately 50 to 10,000 ppm* (*based on Methane).

Two levels of sensitivity: High (Approximately 50 to 1000 ppm) and Low (Approximately 50 to 10,000 ppm).

Five red LED's (visual) and 85dB audible alerts that increase with gas concentration.

Automatic zero-point calibration at power-up (lights will flash during self-calibration; this does not indicate the presence of gas).

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Product information

Technical Details

Additional Information

Warranty & Support

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User manual Manual [PDF ]

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


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Product Description

The ET120 is it the perfect choice for HVAC professionals. It is an easy-to-use tester that provides audible and visual alarms in the presence of methane, propane and other combustible gases at concentrations as low as 50 ppm. It features two levels of sensitivity depending on users' needs: High (approximately 50 to 1000 ppm) and Low (approximately 1,000 to 10,000 ppm). For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

Important information

Safety Information

Gas Detector is NOT intended for use as personal protective equipment (PPE)Read, understand and follow all instructions to ensure safe operationAlways turn on the gas detector in an area known to be free of combustible gases

Customer reviews

4.5 out of 5 stars
4.5 out of 5
1,668 global ratings

Customers say

Customers like the performance, ease of use, and value of the gas smoke fire alarm. For example, they mention it works well, is easy to use, is accurate, and well worth the price. Customers are also satisfied with sensitivity. That said, opinions are mixed on quality and accuracy.

AI-generated from the text of customer reviews

76 customers mention62 positive14 negative

Customers like the performance of the gas smoke fire alarm. They say it works well, is easy to use, and gets the job done. Some mention that the indicator lights worked well, but the audible alarm was almost nothing. Overall, most are satisfied with the product's performance and recommend it to others.

"...This worked flawlessly. As instructed, I set the meter to high sensitivity and walked through the 1800 sq ft open space...." Read more

"...Easy to use and so far as I’m concerned very accurate and useful. Even if I never need it again it was worth the money." Read more

"...the negitive side setup takes about a min to calibrate but once calibrated it works well." Read more

"...This seems to be an excellent product and is easy to use." Read more

37 customers mention34 positive3 negative

Customers find the gas smoke fire alarm easy to use. They mention it's spot on with the location of leaks.

"...This enabled me to find a slow leak in one fitting. Easy to use and so far as I’m concerned very accurate and useful...." Read more

"...This seems to be an excellent product and is easy to use." Read more

"...It is ruggedly constructed and easy to use. My only complaint is the case...." Read more

"...It's pretty easy to use and the accuracy seems to be on par with others I've used in the past." Read more

33 customers mention30 positive3 negative

Customers are satisfied with the value of the gas smoke fire alarm. They mention that it is well worth the price, works well, and is an economical choice from a quality manufacturer. Some say that it's much cheaper than professional leak detectors and is a good tool for the price.

"...No leak, no smell. So thankful that the tool was affordable and that our facility is safe." Read more

"...Even if I never need it again it was worth the money." Read more

"...It was an economical choice from a quality manufacturer which I trust and have many hand tools and a meter...." Read more

"Compared to other brands, the price of this unit is far better...." Read more

19 customers mention16 positive3 negative

Customers like the sensitivity of the gas smoke fire alarm. They mention that it has two sensitivity ranges, is sensitive and responsive, and easy to use with sensitivity settings.

"...It seems that the high sensitivity setting is very sensitive and responsive. I turned on a burner in the trailer and it immediately went off...." Read more

"...The Klein Combustible Gas Leak Detector has two sensitivity ranges...." Read more

"...It’s two levels of sensitivity helps to identify leaks in gas lines or other sources of flammable gases. This may not be the tool for a professional." Read more

"...With the high sensitivity, I worked with the plumber and located a tiny leak from the union that wasn't bubbling. Issue solved. He's buying one also...." Read more

79 customers mention46 positive33 negative

Customers are mixed about the quality of the gas leak detector. Some mention it's the best they have ever had, it finds leaks fast, and it makes it easier to pin point a possible leak. However, others say that it found three independent leaks, none of which was the stove-to-supply pipeline. It makes an continuous audible beep when it detects gas, and some customers say that the wand broke just a month after they bought it.

"...After making the repairs, I tested the area again. No leak, no smell. So thankful that the tool was affordable and that our facility is safe." Read more

"...The rubber was intact, the lines were scored and had countless leaks. No dish soap test would ever have picked it up...." Read more

"This tool is very well made and seems to be very accurate...." Read more

"...Bought this and it finds leaks fast. Wondered why I didn't buy this before. If you do gas work, this is the tool to buy" Read more

23 customers mention15 positive8 negative

Customers are mixed about the accuracy of the gas smoke fire alarm. Some mention that it's highly accurate and sensitive, with a visual led screen that provides an added benefit for accuracy. However, others say that it overpriced, it gives false readings, and the levels are not possible to determine. The LED light indicators do not provide exact readings.

"...Easy to use and so far as I’m concerned very accurate and useful. Even if I never need it again it was worth the money." Read more

"...The plumber said the detector was defective. I kept testing after the plumber left and the results slowly went back to zero after about 30 minutes...." Read more

"This tool is very well made and seems to be very accurate...." Read more

"...It's pretty easy to use and the accuracy seems to be on par with others I've used in the past." Read more

9 customers mention6 positive3 negative

Customers are mixed about the smell of the gas smoke fire alarm. Some mention that there is no smell, while others say that there was a faint smell of gas.

"...After making the repairs, I tested the area again. No leak, no smell. So thankful that the tool was affordable and that our facility is safe." Read more

"I recently went into the laundry room and there was a faint smell of gas . I purchased this item and it arrived quickly( thank you prime!)...." Read more

"...There was no gas smell probably because weak insulation allowed gas to exit above sill plate without accumulating...." Read more

"Love it. It's really easy to get used to the smell of gas. I have twice caught gas leaks with this when I wasn't sure if I really smelled gas." Read more

Worked well for us 😊
5 Stars
Worked well for us 😊
We had a propane leak and useing soapy water could not pinpoint were it was. Bought this tool and found it right away. Pressure regulator failed and was venting from bottom. Now we have it on board our class A RV
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