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Klein Tools

Klein Tools ET110 CO Meter, Carbon Monoxide Tester and Detector with Exposure Limit Alarm, 4 x AAA Batteries and Carry Pouch Included

    • Based on 1,160 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Apr 20
Order within 22 hours and 15 minutes
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Style: Meter


Features

  • ACCURATE CO GAS MEASUREMENT: Detect and measure carbon monoxide gas levels with precision using our easy-to-use CO meter
  • PORTABLE AND PROTECTIVE: Carry our CO detector anywhere for user safety, with a built-in short-term exposure limit (STEL) alarm
  • DUAL ALARM SYSTEM: Stay informed about CO levels with both low (35 ppm) and high (200 ppm) level alarms, ensuring prompt action
  • AUDIBLE AND VISUAL ALERTS: Receive immediate warnings through audible and visual alarms, providing increased safety and peace of mind
  • CLEAR DISPLAY: Backlit display shows CO measurements (0 to 1000 ppm) and temperature (Fahrenheit and Celsius) for easy reading
  • BATTERY SAVING FEATURE: Auto-power off after 20 minutes of inactivity helps conserve battery life, extending the device's usability
  • CONVENIENT PACKAGE: Includes a carrying pouch and 4xAAA batteries, making it easy to transport and operate the CO meter efficiently

Description

The ET110 CO Detector is an easy-to-use meter that detects and measures concentration levels of carbon monoxide (ppm) and temperature (Fahrenheit/Celsius), making it the perfect choice for HVAC professionals. Features backlit LCD screen, warning indicator light, audible and visual alarms and multiple function buttons. Includes carrying pouch and 4 x AAA batteries. 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.

Brand: Klein Tools


Style: Meter


Power Source: Battery Powered


Color: Orange


Product Dimensions: 7.74"D x 2.16"W x 1.46"H


Item Weight: 5.1 Ounces


Alarm: Visual


Global Trade Identification Number: 55


Number of Items: 1


Manufacturer: Klein Tools


Brand: ‎Klein Tools


Style: ‎Meter


Power Source: ‎Battery Powered


Color: ‎Orange


Product Dimensions: ‎7.74"D x 2.16"W x 1.46"H


Item Weight: ‎5.1 Ounces


Alarm: ‎Visual


Global Trade Identification Number: ‎55


Number of Items: ‎1


Manufacturer: ‎Klein Tools


UPC: ‎092644690655


Part Number: ‎ET110


Item Weight: ‎5.1 ounces


Country of Origin: ‎China


Item model number: ‎ET110


Batteries: ‎4 AAA batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Item Package Quantity: ‎1


Measurement System: ‎Metric


Display Style: ‎Backlit LCD


Special Features: ‎Audible Alert, Auto-Power Off, Visual Notification


Included Components: ‎Batteries, Pouch


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Description Pile: ‎4 x AAA


Date First Available: June 10, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Bought this to get rid of my fears
I was feeling sick and couldn't figure out why, so I brought back out my air quality tester (that is now in the garbage), and it signaled to me that the CO was extremely high in my room, scared the crap out of me, got this overnighted to me, turns out the cheap Chinese air quality tester has a tendency to be completely WRONG. Keeping it around in a drawer for future use, but this thing is awesome, well built and seemingly very accurate. ... show more
Reviewed in the United States on October 12, 2024 by Michael Earle
    • Appears to work as expected.
Appears to work as expected. Reports zero when in clear air. Reports over 300PPM when placed about 4ft from UTV exhaust (it's a 20 year old gas engine). The response time was 2-3 seconds 4ft from gas engine exhaust and readings zoomed over 300ppm and I moved away. Real world quick test appears to work. I tested our home air ducts in several places with this meter and all of them read 0. We wanted to put a number to CO ppm in addition to the smoke detectors with CO detection which always show OK without any numeric value. Having a good quality meter seems like a wise idea if you have natural gas or propane heating. I am happy with the unit after one use. Note: If you are a home owner and not likely to use the meter very often, consider removing the AAA batteries after each use so there is no chance of a battery leaking into the meter. ... show more
Reviewed in the United States on September 22, 2024 by Kelle_Jane
    • great tool, alerts us of CO before the alarm can go off!
I bought this because we have had 2 CO alarms go off at like 10PM, which is no fun. Yup fire dept and local natural gas tech had to show and clear our house of CO leaks, BEFORE we could get back in our house. Turns out our gas fireplace had glass chips in it - something great new idea apparently - but they we covering up the air slots in the interior of the gas fireplace. So the CO was being kept down inside the fireplace, instead of pulling in the fresh air from the house. Once I removed the glass chips it did fix the problem!!! But I wanted to be sure and not get the opportunity to be stuck outside again! Thanks to a local fireplace install company! I kept the Klein CO sensor running for a couple of hours and no CO!!! ... show more
Reviewed in the United States on February 10, 2025 by Tim
    • Auto shutoff too quick
I work in HVAC and use this CO meter daily. I wish the auto shutoff wasn't so fast, because each time it shuts I go outside to zero it and come back inside. I also wish it had a magnet on back possibly instead of the pocket clip, but that is probably just preference. Overall works well and battery lasts a long time. ... show more
Reviewed in the United States on November 11, 2024 by Nick L.
    • Does this smell funny to you . . .
Easy to use, just read the directions. Seems to be accurate. We're still alive . . .
Reviewed in the United States on June 1, 2024 by P N
    • Great helper
Was monitoring CO from my old gas furnace through winter from time to time
Reviewed in the United States on March 7, 2025 by dvk
    • Klein tool works well
Klein tools work as they should.
Reviewed in the United States on February 4, 2025 by J W R
    • good thing to have
we had our AC/heater unit inspected, they guy turned on the furnace and measured carbon monoxide with his unit and claimed he read 13ppm, and already sent us a quote for 15k to change the furnace to a new one. We were a bit shocked of course. We decided to double-check it ourselves and got this unit. We got it and, first of all, I wanted to make sure that it actually can detect carbon monoxide. We made sure to follow the instructions and we even turned and unit on and did the self-calibration (set button) outside, to make sure that it is calibrated in a space without any carbon monoxide. To get a positive control I lit a candle and blew it out. That first moment after a candle is blow out and you see a smoke, there is definitely some carbon monoxide forms. And, indeed, the unit went off. Showed something like 150 ppm (I put the meter right where the smoke from the candle was). In the rooms the reading was just zero. I was repeating these measurements in the rooms to make sure it is still zero, and it was. One time when I was messing around with it, I decided to breath on it just for fun, and it measured 3 ppm of carbon monoxide. I didn't know whether human breath supposed to have any, so I googled it and I saw that human breath for non-smoker should have 1 - 6ppm carbon monoxide. That was a cool observation, because it meant that the unit is indeed sensitive. So, since it so far looks that the unit is capable of measuring high (candle) and low(breath) amounts of carbon monoxide, and it still shows 0 ppm in our rooms, I think we won't be spending 15k for new furnace for now. ... show more
Reviewed in the United States on October 1, 2022 by Natalia

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