---
product_id: 359900902
title: "Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight"
brand: "klein tools"
price: "$272.25"
currency: USD
in_stock: true
reviews_count: 13
category: "Klein Tools"
url: https://www.desertcart.us/products/359900902-klein-tools-et180-digital-manometer-air-and-gas-pressure-tester
store_origin: US
region: United States of America
---

# ±1.5% accuracy Auto power-off battery saver Strong magnetic hands-free mount Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight

**Brand:** klein tools
**Price:** $272.25
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your HVAC game with precision and ease—because every pro deserves the Klein edge!

## Quick Answers

- **What is this?** Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight by klein tools
- **How much does it cost?** $272.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/359900902-klein-tools-et180-digital-manometer-air-and-gas-pressure-tester)

## Best For

- klein tools enthusiasts

## Why This Product

- Trusted klein tools brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready for Action:** Includes silicone tubing, batteries, and storage pouch—fully equipped to tackle your next job site challenge.
- • **Hands-Free Efficiency:** Built-in strong magnet secures the device for effortless, hands-free operation on any metal surface.
- • **Multi-Unit Flexibility:** Seamlessly toggle between 11 pressure units to fit any professional standard or project.
- • **Visibility in Any Light:** Large backlit LCD ensures crystal-clear readings even in dim or confined workspaces.
- • **Precision Pressure Mastery:** Measure static & differential pressure with ±1.5% accuracy for HVAC and gas systems.

## Overview

The Klein Tools ET180 Digital Manometer is a professional-grade differential pressure gauge designed for HVAC and gas system diagnostics. Featuring ±1.5% accuracy, a large backlit LCD, and a strong magnetic mount for hands-free use, it supports 11 pressure units and includes all essential accessories. Trusted by pros since 1857, this compact, durable tool streamlines pressure measurement with precision and convenience.

## 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.

Review: Good product - recommend labeling your ports - 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.
Review: Must have tool for appliance/hvac professionals - 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

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099ZYCV1L |
| Batteries | 3 AAAA batteries required. (included) |
| Best Sellers Rank | #9,906 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Manometers |
| Brand | KLEIN TOOLS |
| Date First Available | July 19, 2021 |
| Global Trade Identification Number | 00092644693366 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.9 ounces |
| Item dimensions L x W x H | 2.47 x 1.38 x 6.19 inches |
| Item model number | ET180 |
| Manufacturer | Klein Tools |
| Material | Acrylonitrile Butadiene Styrene (ABS), Stainless Steel |
| Product Dimensions | 2.47 x 1.38 x 6.19 inches |
| UPC | 092644693366 |

## Product Details

- **Brand:** KLEIN TOOLS
- **Item Weight:** 0.37 Pounds
- **Item dimensions L x W x H:** 2.47 x 1.38 x 6.19 inches
- **Material:** Acrylonitrile Butadiene Styrene (ABS), Stainless Steel
- **UPC:** 092644693366

## Images

![Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight - Image 1](https://m.media-amazon.com/images/I/514T-Ymk9JL.jpg)
![Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight - Image 2](https://m.media-amazon.com/images/I/61Z9iRFybEL.jpg)
![Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight - Image 3](https://m.media-amazon.com/images/I/61r3RY7UQoL.jpg)
![Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight - Image 4](https://m.media-amazon.com/images/I/51dIgPByZuL.jpg)
![Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight - Image 5](https://m.media-amazon.com/images/I/61-PnCScYmL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Will this work to check pressure switches**
A: Yes

**Q: What is the precision in "H2O, 0.01?**
A: + or - 60.32 is the range and the resolution is .01

**Q: There's no how video ofnthis product???**
A: Try YouTube

**Q: What is the difference between p1 and p2? which side is the negative pressure side? i’m resisting sucking on the hose to determine info missing.**
A: Both the same- can be set to use one Or two Or both

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product - recommend labeling your ports
*by J***R on October 27, 2025*

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.

### ⭐⭐⭐⭐⭐ Must have tool for appliance/hvac professionals
*by A***B on December 3, 2025*

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

### ⭐⭐⭐⭐⭐ required tool
*by M***. on March 2, 2026*

required tool for crankcase vacuum/pressure diagnostics.... helped to diagnose and resolve a restricted pcv orifice on an Ecotec

## Frequently Bought Together

- Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight
- ZIBOO ASP2 Static Pressure Probes (Two-Pack)
- ZIBOO RMA316 Manometer Tube Adapter, 3/16" to 5/16 Compatible with Fieldpiece JL3KM2 ，SDMN5，SDMN6，ADMN2 Compatible with Klein Tools ET180

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-20*