---
product_id: 69972515
title: "Digital Manometer, Dual-Port HVAC Gas Pressure Tester, Differential Gauge"
brand: "leaton"
price: "$93.51"
currency: USD
in_stock: true
category: "Leaton"
url: https://www.desertcart.us/products/69972515-digital-manometer-dual-port-hvac-gas-pressure-tester-differential-gauge
store_origin: US
region: United States of America
---

# 0.5s fast response Large backlit LCD ±0.3% accuracy Digital Manometer, Dual-Port HVAC Gas Pressure Tester, Differential Gauge

**Brand:** leaton
**Price:** $93.51
**Availability:** ✅ In Stock

## Summary

> 📈 Elevate your HVAC game with precision and clarity—don’t get left behind!

## Quick Answers

- **What is this?** Digital Manometer, Dual-Port HVAC Gas Pressure Tester, Differential Gauge by leaton
- **How much does it cost?** $93.51 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/69972515-digital-manometer-dual-port-hvac-gas-pressure-tester-differential-gauge)

## Best For

- leaton enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable ABS casing resists high temps and impacts for long-term reliability.
- • **Smart Data Handling:** Store and recall measurements easily with built-in memory and low battery alerts.
- • **Dual-Port Versatility:** Measure single or differential air pressure seamlessly with dual ports.
- • **Crystal Clear Readings:** 4.95x4.45cm backlit LCD reduces eye strain during late-night troubleshooting.
- • **Precision You Can Trust:** Achieve ±0.3% FSO accuracy for flawless HVAC diagnostics.

## Overview

The Leaton QX-1201 Digital Manometer is a professional-grade dual-port air pressure meter designed for HVAC, gas systems, and lab use. Featuring ±0.3% accuracy, a large backlit LCD, and rapid 0.5-second response time, it ensures precise and clear measurements. Its rugged ABS build withstands harsh conditions, while smart storage and low battery alerts keep your workflow uninterrupted. Ideal for technicians demanding reliability and efficiency.

## Description

Digital Manometer, Dual-Port HVAC Gas Pressure Tester, Differential Gauge | ±2.999 psi Range, ±0.3% FSO Accuracy, 12 Units, Backlit LCD, Static Pressure, for HVAC Techs and DIY: desertcart.com: Industrial & Scientific

## Features

- Dual-Port Digital Manometer for HVAC Checks – Measure pressure at one point relative to ambient air or compare pressure between two connected points with one handheld tool. This HVAC manometer helps with duct static pressure, filter differential pressure, blower troubleshooting, ventilation maintenance, and suitable boiler or clean-room applications. It is practical for residential and commercial service calls. For single-port testing, leave the unused port open to still air. For P1–P2 differential readings, connect both hoses and press and hold DIF for more than 2 seconds.
- There is no separate ZERO button on this manometer. Before connecting the hoses, leave both ports open to ambient air and press and hold HOLD for more than 2 seconds to clear zero drift. A short press of HOLD freezes the displayed reading, making it easier to check a value when the test point is awkward to reach. Keep the meter away from vibration, strong electromagnetic fields, and sudden temperature changes during measurement.
- Short-press C/F to save the current measurement, then press and hold C/F to leave storage mode. During history review, short-press DIF to move forward or MAX to move back through saved readings, one record at a time. Press and hold UNITS for more than 2 seconds to clear all stored records. Data Hold freezes the screen, while storage saves a record for later review on the device. It is not designed for timestamped logging or data export.
- This QX-1201 digital air pressure gauge measures ±20.68 kPa (±2.999 psi), with 0.001 kPa and 0.001 psi display resolution. Accuracy is ±0.3% FSO at 25°C; repeatability is ±0.2%, with a maximum of ±0.5% FSO; linearity/hysteresis is ±0.29% FSO at 25°C. The manual specifies a 0.5-second measurement interval. Select from 12 pressure units including kPa, psi, inH2O, mbar, and bar. Err0 indicates pressure above the positive range; Err1 indicates pressure below the negative range. FSO refers to full-scale output, not a percentage of each reading.
- The two hose-barb ports are specified for tubing with a 1/8-inch inside diameter, and one adapter is included with this product configuration. Standard HVAC test ports are often 5/16-inch NPT or 1/4-inch NPT, so a 5/16-inch NPT to 1/8-inch barb adapter may be needed — check your test-port thread before ordering. Seat each hose fully on its barb and check for leaks, kinks, or loose connections that could affect the measurement. Use the appropriate static pressure probe when required by your test procedure.
- Use this air pressure meter for HVAC static pressure measurement, filter checks, blower diagnostics, and laboratory vacuum readings within its rated range. For gas appliance testing, confirm that the gas, tubing, fittings, and procedure are suitable, and follow the appliance manufacturer's service instructions. This gas pressure tester measures pressure; it does not detect gas leaks or identify gas composition. It is not a high-vacuum instrument or a gauge for pool and spa high-pressure filters.
- The 1.75 × 1.95 in (4.45 × 4.95 cm) backlit display helps HVAC technicians read results in dim basements, crawl spaces, and mechanical rooms. Short-press POWER while the meter is on to switch the backlight on or off. The manometer uses a replaceable 9V battery, with a low-battery indicator at 6.8V or below and automatic shutdown after about 15 minutes without operation. Note that backlight use shortens battery life. Operating ambient temperature is 32–122°F; storage temperature is 14–140°F.
- The ABS body with a protective rubber sleeve gives HVAC pros, maintenance professionals, and experienced DIY users a convenient manometer gauge for routine residential and commercial pressure checks. HOLD, DIF, MAX/MIN, and stored-record review help you read and compare measurements during troubleshooting. Ideal for routine furnace checks and DIY diagnostics; for daily professional use, consider a higher-end model. The LCD is sensitive to impact, so avoid drops and store it in the protective pouch between jobs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CWQJD6D |
| Best Sellers Rank | #8,999 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Manometers |
| Brand | Leaton |
| Brand Name | Leaton |
| Customer Reviews | 4.4 out of 5 stars 925 Reviews |
| Included Components | Owner's Manual 1x manometer 2x Soft Tubes |
| Item Dimensions | 6.3 x 3.15 x 1.18 inches |
| Item Highlight | ±2.999 psi Range, ±0.3% FSO Accuracy, 12 Units, Backlit LCD, Static Pressure, for HVAC Techs and DIY |
| Item Weight | 200 g |
| Item dimensions L x W x H | 6.3 x 3.15 x 1.18 inches |
| Manufacturer | Dongguan Qixin Electronic Technology Co., Ltd |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Material Type | Acrylonitrile Butadiene Styrene (ABS) |
| Model | QX-1201 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | T68 |
| Thread Style | Npt |
| UPC | 663751079864 |
| Voltage | 9 volts |

## Product Details

- **Brand:** Leaton
- **Item Weight:** 200 g
- **Item dimensions L x W x H:** 6.3 x 3.15 x 1.18 inches
- **Material:** Acrylonitrile Butadiene Styrene (ABS)

## Images

![Digital Manometer, Dual-Port HVAC Gas Pressure Tester, Differential Gauge - Image 1](https://m.media-amazon.com/images/I/61olMa7S+QL.jpg)

## Available Options

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

## Questions & Answers

**Q: can the units be switched from psi to "WC?**
A: Yes I used mine for measuring LP gas pressures.

**Q: What is the thread size of the barb metal connector - 1/4 in. or 3/8 in?**
A: The hose Barbs appears to be molded into the housing, for the supplied 1/8" ID dia hose.

**Q: why are there 2 connector ports?**
A: Second port is for measuring differential pressure, not needed if only reading pressure, and there is a positive and negative.

**Q: Why does it read -.018"H2O without even taking the measurement? That would be quite an error.**
A: Because it hasn’t been “zero’d” yet.

## Frequently Bought Together

- Manometer, Professional Air Pressure Meter, Dual-Port HVAC Digital Manometer Gas Pressure Tester,12 Selectable Units Differential Pressure Gauge, (Included Battery)
- ZIBOO ASP2 Static Pressure Probes (Two-Pack)
- 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 United States of America*
*Store origin: US*
*Last updated: 2026-10-11*