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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 1,122 reviews
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Nov 18
Order within 21 hours and 3 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


Item Weight: 5.1 Ounces


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


Alarm: Visual


Power Source: Battery Powered


Color: Orange


Style Name: Meter


UPC: 092644690655


Global Trade Identification Number: 55


Manufacturer: Klein Tools


Brand Name: Klein Tools


Model Number: ET110


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 18

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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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
    • 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
    • Affordable Meter - Still have anxiety
Overall, I like this item and it seems to give reliable readings. But the accuracy is questionable at times, as some other reviews have noted. First, there definitely seems to be about a 20 second delay at all times. I can walk behind my running car with the device, and roughly 15-20 seconds later, the readings clearly jump to 20-40 ppm. Walking into a clean space seems to be a quicker response. Often less than 10 seconds. I have had a couple odd moments where my parking garage registers zero ppm. This would be impossible. I've come to the odd conclusion with this device that parking lots have terrible air, even though they're outdoors. Walking through a busy mall parking lot, I got a jump to 50ppm on this device, but in my ENCLOSED parking garage, I've never once seen a reading above 20ppm. Thank goodness for HVAC I guess. I've also seen a few odd moments where the clean air in my home will jump from 0ppm to 3ppm and instantly back down to 0. I wonder what this means. Just a possible "waft" of CO? I'd also recommend that the engineers who developed this device consider de-coupling the Max/Average clear button. Just because I want to clear the Max doesn't mean I want to clear my Average. Does that make sense? ... show more
Reviewed in the United States on November 8, 2019 by Dick Turpin
    • Finally a good CO monitor
I bought this after buying four cheesy units that were advertised (@ $55) for home CO monitoring. The other units came with poor instructions, worse execution and constantly gave false alarms. This unit by Klein tools is built solid, instructions were simple, clear and easy to use and the unit gave rapid and accurate readings. Excellent ... show more
Reviewed in the United States on November 5, 2022 by Virginia Customer
    • 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
    • Good product
All was perfect! Package arrived when it was supposed to. Arrived very well packed and and in perfect condition. I would definitely order from them again. The item that they had on display (pics) for sale was exactly what came. Ot was perfect.
Reviewed in the United States on April 8, 2024 by tim Dryer
    • Simple to use
At about 2am one morning, the CO alarm in my camper started howling, forcing an immediate evacuation of the camper. Since I couldnt locate the source of the issue in the middle of the night, the decision was made (at 2am) to abort the trip and head home. 3 hours later, we pulled back into our driveway, and before collapsing into bed, I jumped online to locate: 1- info about CO leaks, and 2- a CO leak detector. Having had good success with other Klein products, this one was a no-brainer. Easy to operate and understand, i was able to troubleshoot the leak issue in my camper in short order. This tool will accompany me on future trips, just in case. ... show more
Reviewed in the United States on January 4, 2023 by teva tanned feet

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