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KLEIN TOOLS

Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight

  • Based on 556 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Mar 8
Order within 3 hours and 16 minutes
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Features

  • MEASURE STATIC AND DIFFERENTIAL pressure from two ports in air and gas systems
  • MONITOR AND TROUBLESHOOT problems in HVAC Systems with a range of +/- 60 inH2O and full scale accuracy of +/-1.5-Percent
  • STRONG MAGNET ON BACK secures manometer for hands-free operation
  • ELEVEN UNITS MEASURED: Easily toggle between inH2O, bar, oz/in2, psi, mbar, kPa, inHg, mmHg, kg/cm2, ftH20, and cmH2O
  • LARGE BACKLIT LCD provides easy viewing in low light conditions and shows values when toggling between minimum, maximum and average
  • FEATURES INCLUDE auto-power off to conserve battery life and a hold button to lock current reading on the display
  • INCLUDES: ET180 Differential Digital Manometer, 2 m of 1/8-Inch inside diameter silicone tubing, 3 x AAA batteries, storage pouch, and instructions

Description

The ET180 Digital Differential Manometer from Klein Tools measures air and gas pressure for port 1, port 2, and measures the differential between the ports. Easily toggle between units: inH2O, bar, oz/in2, psi, mbar, kPa, inHg, mmHg, kg/cm2, ftH20, and cmH2O. Large, backlit LCD shows minimum, maximum and average values. Magnet on back for hands-free operation. 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


Material: Acrylonitrile Butadiene Styrene (ABS), Stainless Steel


Item dimensions L x W x H: 2.47 x 1.38 x 6.19 inches


Item Weight: 5.92 ounces


UPC:


Brand: ‎KLEIN TOOLS


Material: ‎Acrylonitrile Butadiene Styrene (ABS), Stainless Steel


Item dimensions L x W x H: ‎2.47 x 1.38 x 6.19 inches


Item Weight: ‎5.92 ounces


UPC: ‎092644693366


Global Trade Identification Number: ‎66


Manufacturer: ‎Klein Tools


Product Dimensions: ‎2.47 x 1.38 x 6.19 inches


Item Weight: ‎5.9 ounces


Item model number: ‎ET180


Batteries: ‎3 AAAA batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎July 19, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 8

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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Similar Products

Top Amazon Reviews

    • Good product - recommend labeling your ports
Size: One Size Style: Tester
Great if you need to measure differential pressure. I use mine for checking building pressure at exterior doors. The directions can be a little confusing. You have to know what connection port is for high and which is for low. I used a label maker to put stickers on each port so that I didn't constantly have to consult the manual. Works well enough for routine measurement tasks. If you need something precise, you probably need to purchase a device that can be routinely calibrated by a testing lab that can certify the device at least annually. ... show more
Reviewed in the United States on October 27, 2025 by Jeremy Krueger
    • Must have tool for appliance/hvac professionals
Size: One Size Style: Tester
Works as it should. I've had it close to 12 months and works fine. Of course you'll need different hose/tubing options for your job site. I use it for gas appliances and the ports are around 3/8 or larger. Still a great tool to have dual ports inh20 ,zeroing feature, magnetic
Reviewed in the United States on December 3, 2025 by Andy B
    • Great Tool, stands up to the Klein quality of tools.
Size: One Size Style: Tester
Works perfectly in setting upto gas pressures in gas valves. This is a MUST have device to keep your installations safe and operational.
Reviewed in the United States on December 14, 2025 by Harley UltraRider-NC
    • required tool
Size: One Size Style: Tester
required tool for crankcase vacuum/pressure diagnostics.... helped to diagnose and resolve a restricted pcv orifice on an Ecotec
Reviewed in the United States on March 2, 2026 by Michael F.
    • This tool belongs and every trade person's toolbox.
Size: One Size Style: Tester
As an electrician, my expertise typically lies outside the realm of measuring air pressures. However, while working on industrial burners, I encountered a situation where verifying the safety circuit became paramount. In that instance, the precision of this meter not only proved invaluable but also justified its cost with just a single use. Its capabilities transformed a routine task into a critical safety check, ensuring that everything operated smoothly and securely. ... show more
Reviewed in the United States on February 27, 2025 by D. R. Hatton
    • Works good
Size: One Size Style: Tester
I got this to double check the manometer on the pipe to the radon fan. I will be handy for HVAC tests.
Reviewed in the United States on February 22, 2026 by Amazon Customer
    • Small & acurate
Size: One Size Style: Tester
Klein makes a good tool 85% of the time. This one did not disappoint. Compact & accurate tool. Comes with nice zip up fabric case that has a compartment for tubing and connectors needed to use the tool. Recommended.
Reviewed in the United States on October 26, 2025 by Popeye
    • OK, product, rather high price
Size: One Size Style: Tester
It reads in hundreds. It does seem to struggle to hold zero. Overall, the product Is OK. I’ve used it several times it works OK. I guess you can attribute the price to the brand name.
Reviewed in the United States on September 10, 2024 by Pete

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