---
product_id: 14045203
title: "HD755 Heavy Duty Differential Pressure Manometer - 0.5 psi Low Range & High Resolution | Digital HVAC Gauge with 11 Measurement Units, USB Interface, Backlit Display, and Hard Carrying Case"
brand: "extech"
price: "16564274₫"
currency: VND
in_stock: true
reviews_count: 6
url: https://www.desertcart.vn/products/14045203-hd755-heavy-duty-differential-pressure-manometer-0-5-psi-low
store_origin: VN
region: Vietnam
---

# Min/Max/Average data tracking ±0.5 PSI accuracy 11 pressure units selectable HD755 Heavy Duty Differential Pressure Manometer - 0.5 psi Low Range & High Resolution | Digital HVAC Gauge with 11 Measurement Units, USB Interface, Backlit Display, and Hard Carrying Case

**Brand:** extech
**Price:** 16564274₫
**Availability:** ✅ In Stock

## Summary

> 📊 Measure Like a Pro, Lead Like a Boss

## Quick Answers

- **What is this?** HD755 Heavy Duty Differential Pressure Manometer - 0.5 psi Low Range & High Resolution | Digital HVAC Gauge with 11 Measurement Units, USB Interface, Backlit Display, and Hard Carrying Case by extech
- **How much does it cost?** 16564274₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/14045203-hd755-heavy-duty-differential-pressure-manometer-0-5-psi-low)

## Best For

- extech enthusiasts

## Why This Product

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

## Key Features

- • **Built for the Field:** Rugged polycarbonate housing, compact design, and long battery life ensure this manometer is your dependable partner in any environment.
- • **Plug, Play & Protect:** Includes USB interface, software, hoses, and a hard carrying case—everything you need to stay ahead and keep your workflow smooth.
- • **Data at Your Fingertips:** Capture and freeze critical measurements with Min/Max/Average tracking and Hold function on a crisp backlit LCD—perfect for on-the-go diagnostics.
- • **Precision You Can Trust:** Achieve ultra-accurate differential pressure readings with ±0.5 PSI reliability—no guesswork, just confidence.
- • **Seamless Unit Switching:** Effortlessly toggle between 11 pressure units like PSI, mbar, and inH2O to match any professional standard or project need.

## Overview

The Extech HD755 Differential Pressure Manometer delivers professional-grade precision with ±0.5 PSI accuracy and 11 selectable pressure units. Designed for HVAC technicians and facility managers, it features Min/Max/Average data tracking, a backlit LCD for low-light clarity, and a rugged, portable build complete with USB connectivity and a protective case. This tool ensures reliable, versatile pressure measurement wherever your work takes you.

## Description

Product Description               Offering 11 selectable units of measure, the HD755 Differential Pressure Manometer can serve as a low range/high resolution Gauge or provide Differential Pressure up to 0 to 13.85 in. H2O (inches of water). Max/Min recording and Relative time stamp are useful features, as are HD755's Data Hold and Auto Power Off functions. The 0.5psi HD755 also features Zero function for offset correction or measurement and a built-in USB interface. Comes complete with 9V battery, software with USB cable, AC Adaptor, connection hose, built-in stand, and hard carrying case.                  From the Manufacturer               The Extech HD755 Differential Pressure Manometer- 0.5PSI has a ±0.5 psi range and eleven selectable units of measure. It shows the max, min, avg. recordings and the relative time stamp. The functions included are data hold, auto power off and the zero function. It has a large LCD display with backlighting to help the user see in low lit areas. Also, this meter has a heavy-duty, double molded housing and a built in USB port. The Extech HD700 Differential 0.5 PSI Pressure Manometer comes complete with one 9V battery, the Windows compatible software with the hook up USB cable, an AC adaptor, a connection hose, a built-in stand and a hard carrying case. Incorporated in 1970, Extech Instruments is based in Waltham, Massachusetts USA, just west of Boston. Recognized for the breadth and depth of its Test & Measurement offering and strong distribution network, Extech was acquired by FLIR Systems in November 2007. Extech Instruments’ high-value, handheld test instruments and FLIR-branded infrared thermal imager are sold through a network of national catalog houses, regional stocking distributors, internet, and international master distributors. The company has become one of the largest manufacturers and suppliers of test equipment and portable printers and the Extech Instruments brand is regarded in many industries as the brand of choice. ISO 9001:2000 certified by TUV, Extech’s enviable reputation is built on innovative products that offer unique and patented designs with features, functions and reliability at an affordable price.

## Features

- High-Accuracy Differential Pressure Measurement - Get precise pressure readings up to ±0.5 PSI with confidence. Whether you're testing HVAC systems, troubleshooting airflow, or calibrating equipment, this manometer delivers the reliable accuracy professionals demand.
- Versatile Multi-Unit Display - Switch effortlessly between 11 selectable pressure units including PSI, mbar, inH2O, mmHg, and more. No more manual conversions—just quick, convenient measurements tailored to your application.
- Data Functions That Work Harder for You - Capture critical measurements with built-in Min/Max/Average tracking, plus a Hold function to freeze results on the large LCD screen. Perfect when you need to pause and record without losing accuracy.
- User-Friendly Backlit LCD & Zero Function - A bright, easy-to-read display ensures clarity even in dimly lit environments, while the Zero function eliminates drift so you can always start fresh with accurate baseline measurements.
- Rugged, Portable & Ready for the Job - Designed for HVAC technicians, facility managers, and industrial professionals, the compact HD755 comes complete with hose connections, protective case, and long battery life for dependable use in the field.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Extech |
| Material | Polycarbonate (PC) |
| Item dimensions L x W x H | 2.9 x 1.9 x 8.2 inches |
| Item Weight | 0.28 Kilograms |
| UPC | 793950107553 793950107560 |
| Global Trade Identification Number | 00793950107553 |
| Manufacturer | Extech |
| Part Number | HD755 |
| Item Weight | 9.9 ounces |
| Product Dimensions | 2.9 x 1.9 x 8.2 inches |
| Item model number | HD755 |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Style | Differential Pressure Manometer (0.5psi) |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement Accuracy | +/-0.5% |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Warranty Description | Full three year warranty on parts and workmanship, unless otherwise specified. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. |

## Product Details

- **Brand:** Extech
- **Material:** Polycarbonate (PC)
- **Item dimensions L x W x H:** 2.9 x 1.9 x 8.2 inches
- **Item Weight:** 0.28 Kilograms
- **UPC:** 793950107553 793950107560

## Images

![HD755 Heavy Duty Differential Pressure Manometer - 0.5 psi Low Range & High Resolution | Digital HVAC Gauge with 11 Measurement Units, USB Interface, Backlit Display, and Hard Carrying Case - Image 1](https://m.media-amazon.com/images/I/71Pb1QSpBsL.jpg)

## Questions & Answers

**Q: Wouldn't the 2psi version do everything this one does and more? They both have 0.001psi resolution.**
A: If all you care about is 0.001 psi resolution, then you should be fine with the 2psi version. However, the 0.5psi version does have better resolution, as can clearly be seen in the spec sheet, ie, 0.01mmHg vs 0.1mmHg. So it just depends on your application, but it would be a pretty rare application that requires better resolution that 0.001psi.

**Q: Is it intrinicly safe for testing natural gas pressure?**
A: No moving parts, and a sealed assembly would lead me to say yes.

**Q: This includes nist-traceable calibration certificate?**
A: This does not come with the NIST traceable certificate. The Extech part number HD750-NIST will include the cert.

**Q: How many decimal places does this unit display to the right of the decimal when using "in wc"?**
A: Two. It reads in hundredths of inches water column. It's probably not that accurate, but it displays them.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pro User Recommended
*by R***S on January 27, 2014*

I service industrial burners for a living. Customer pay good money to fly me around the world to service their equipment. This series of manometers by Extech are the ones I use most often. They are reliable, remain accurate, have very useful recording and min/max/averaging features. Extech makes this item in 3 ranges (this on is 0 to 0.5 psi). It also comes in 0 to 2 psi and 0 to 5 psiIf I had one nit to pick, it would be that they turn on too easily. I must remove the batteries to keep them from accidentally being turned on in my bag or shipping box. They do turn off by themselves after a few minutes, but I have had them drain the battery during transit.

### ⭐⭐⭐⭐⭐ I am very happy with this instrument
*by J***G on August 21, 2015*

Excellent. I used this for flow measurement on a jobsite where I was on ladders, on roofs, and on manlifts. I had a liquid manometer with me as well, but there was no way I could have used it under those conditions..I compared readings side by side with a conventional manometer, and ti was a perfect match. It even has a magnetic strap to hang it securely on a metal surface to make it even easier to use.

### ⭐⭐⭐⭐⭐ Easy to use and great display
*by R***L on August 20, 2014*

Use this on most service calls to check static pressure. Long battery life. I use a rechargeable so no big battery expense. I put flex tubes on it and some small nylon tubes at end sliced at angle so I can simply jam into duct and get measurement. Nice hard case that I can keep in van without worry of being destroyed.

## Frequently Bought Together

- Extech HD755 Differential Pressure Manometer- 0.5PSI
- Pure Silicone Tubing - 1/8" ID x 1/4" OD - High Temp Kink-free Hose Tube 500F (10 Feet)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-10*