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AUTOOL Differential Pressure Gauge
AUTOOL Differential Pressure Gauge
  1. AUTOOL Differential Pressure Gauge
  2. AUTOOL Differential Pressure Gauge

AUTOOL Differential Pressure Gauge

Price range: US$59.00 through US$139.00

Key Features
  • Automotive Vacuum Checks
  • Multi-Unit Readings
  • Data Lock Storage
Key Features
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AUTOOL PT Series

Product Overview

The AUTOOL PT Series Differential Pressure Gauge is ideally suited for checking intake manifold vacuum, brake booster pressure, crankcase pressure, exhaust valve pressure, and pressure changes in non-corrosive oil, water, air, and natural gas applications. Built-in high-precision pressure sensors support fast response, multi-unit measurement, data hold, and selected data recording functions depending on the model, making the PT series a practical tool for automotive repair, maintenance diagnosis, field testing, and mobile pressure inspection.

Dual-Port Testing 6-10 Units Data Hold Automotive Pressure
PT503Mini Portable
PT52029 Sets Storage
PT530±0.25%FS
3 YearsWarranty
How To Choose

How To Choose

Choose your PT series model based on portability, pressure units, data storage, measurement range, accuracy, and field operation requirements.

Need A Portable Meter?

Choose the AUTOOL PT503 Mini Portable Differential Pressure Meter. It is small, compact, easy to operate, and suitable for field testing or mobile use.

Need More Pressure Units?

Choose PT520 or PT530 if you need broader unit switching support. Different PT series models and versions support 6-10 pressure units, so confirm the comparison chart and product option before ordering.

Need Data Clearing / Recording / Storage?

Choose PT520 or PT530 if data clearing, record storage, and measurement review are important. Both models support 29 sets of data storage.

Need Higher Accuracy?

Choose PT530 when higher accuracy and wider range are required. PT530 provides ±0.25%FS accuracy and a -100~300Kpa measurement range.

Product Comparison

Product Comparison

Compare PT503, PT520, and PT530 before choosing the right differential pressure gauge for portability, range, accuracy, data storage, units, flashlight support, magnetic design, toolbox, and automotive test applications.

PT503 FocusMini portable model with 1.8-inch screen, 7 connectors, -100~200Kpa range, ±0.5%FS accuracy, data lock, backlit display, and 6 pressure units
PT520 Focus2.8-inch model with 29 sets data storage, 7 connectors, -100~200Kpa range, ±0.3%FS accuracy, flashlight function, data lock / clear / record, and multi-unit support
PT530 FocusHigher-accuracy model with 2.8-inch screen, 29 sets data storage, -100~300Kpa range, ±0.25%FS accuracy, button light, magnetic back design, flashlight, equipped toolbox, and multi-unit support
Decision CheckCompare portability, measurement range, accuracy, data storage, pressure units, flashlight, magnetic back design, equipped toolbox, and target test scenario before ordering
AUTOOL PT503 PT520 PT530 differential pressure gauge comparison chart Click to enlarge
Key Features

Key Features

The PT series combines pressure sensors, data hold, multi-unit measurement, dual-port testing, and multiple adapters for pressure and negative-pressure testing in automotive and field environments.

High-Accuracy Pressure Sensors

Built-in high-precision pressure sensors support fast response and stable measurement across automotive pressure and vacuum testing scenarios.

Data Lock / Clear / Record

PT503 supports data lock. PT520 and PT530 support data lock, data clear, data record, and 29 sets of data storage for measurement review.

Dual-Channel Pressure Testing

The PT series supports simultaneous pressure measurement at two different positions, making it useful for differential pressure checks and dual-point comparisons.

Multi-Parameter Display

Positive pressure, negative pressure, and differential pressure values can be displayed to help technicians judge system behavior during field diagnosis.

Multiple Pressure Units

Different PT models support 6-10 units, such as kPa, hPa, Torr, mbar, inHg, mmHg, inH₂O, mmH₂O, psi, and bar / kg/cm² depending on the model version.

Multiple Measuring Adapters

PT series models include 7 types of accessory connectors. PT520 also emphasizes different measuring adapters for different pipe diameters.

Applications

Applications

Use the PT series for routine pressure and negative-pressure checks during vehicle repair, maintenance, field testing, and non-corrosive media pressure inspection.

Intake Manifold Vacuum Testing

Check intake manifold vacuum or negative pressure conditions during engine diagnosis and maintenance.

Brake Booster Pressure Testing

Support brake booster pressure or vacuum-related checks during braking system diagnosis.

Crankcase Pressure Testing

Measure crankcase pressure or negative pressure conditions to support engine system troubleshooting.

Exhaust Valve Pressure Testing

Use pressure or negative-pressure readings to assist exhaust valve-related test and maintenance work.

Non-Corrosive Media Testing

The comparison content shows use cases for non-corrosive oil, water, air, and natural gas pressure testing. Do not use for corrosive media unless the specific product page confirms compatibility.

Mobile Field Testing

PT503 is especially useful when compact size, easy operation, and portable testing are priorities.

Series Summary

PT Series Capability Summary

Use this compact summary to confirm model differences before ordering. The current version no longer supports Pa unit display.

Series Overview
Product SeriesAUTOOL PT Series Differential Pressure Gauges
ModelsPT503, PT520, PT530
Primary UseAutomotive pressure and negative pressure measurement for repair, maintenance, and field testing
Accessory Connectors7 types of accessory connectors
Model Differences
PT5031.8-inch screen, -100~200Kpa range, ±0.5%FS accuracy, data lock, backlit display, 6 pressure units, portable design
PT5202.8-inch screen, -100~200Kpa range, ±0.3%FS accuracy, 29 sets data storage, flashlight, data lock / clear / record, multi-unit support
PT5302.8-inch screen, -100~300Kpa range, ±0.25%FS accuracy, 29 sets data storage, button light, magnetic back design, flashlight, equipped toolbox, multi-unit support
Important Notes
Pa Unit DisplayPa unit display is no longer supported in the current version
ZeroingBefore testing, make sure the display reads 0 when no test line is connected; if not, press the zero button before measurement
Storage SupportPT520 and PT530 support 29 sets of data storage; PT503 supports data lock but not storage
Warranty3-year warranty for eligible non-human damage cases
Series Overview
Product SeriesAUTOOL PT Series Differential Pressure Gauges
ModelsPT503, PT520, PT530
Primary UseAutomotive pressure and negative pressure measurement for repair, maintenance, and field testing
Accessory Connectors7 types of accessory connectors
Model Differences
PT5031.8-inch screen, -100~200Kpa range, ±0.5%FS accuracy, data lock, backlit display, 6 pressure units, portable design
PT5202.8-inch screen, -100~200Kpa range, ±0.3%FS accuracy, 29 sets data storage, flashlight, data lock / clear / record, multi-unit support
PT5302.8-inch screen, -100~300Kpa range, ±0.25%FS accuracy, 29 sets data storage, button light, magnetic back design, flashlight, equipped toolbox, multi-unit support
Important Notes
Pa Unit DisplayPa unit display is no longer supported in the current version
ZeroingBefore testing, make sure the display reads 0 when no test line is connected; if not, press the zero button before measurement
Storage SupportPT520 and PT530 support 29 sets of data storage; PT503 supports data lock but not storage
Warranty3-year warranty for eligible non-human damage cases
Related Products

Related Products

Compare the core AUTOOL PT series pressure gauges with the shared global product card style and mobile slider behavior.

Related Guides

Related Guides

Selected guides related to digital manometers, workshop pressure tools, and vacuum leak diagnosis.

Before You Order And Use

Before You Order And Use

Review unit support, zeroing, model differences, adapter selection, and media compatibility before taking pressure readings.

Use And Model Notes

  • Pa unit display is no longer supported in the current version.
  • Different PT models support different pressure units; confirm the unit list before ordering.
  • Before testing, make sure the display reads 0 when no test line is connected.
  • If pressure is displayed before connecting a test line, press the zero button to perform zeroing before measurement.
  • Use the correct adapter for the pipe diameter being tested.
  • PT520 and PT530 support data storage; do not assume all PT models include storage.
  • Do not use the gauge for corrosive media unless the specific product page confirms compatibility.
  • For reading accuracy support, prepare the comparison device information, testing environment, and error range.

Questions And Answers

These answers cover inaccurate readings, zeroing, Pa unit support, portability, data storage, higher accuracy, and the differences between PT503, PT520, and PT530.

Warranty And Contact

Warranty And Contact

For PT503 / PT520 / PT530 model selection, unit display confirmation, zeroing support, adapter selection, reading accuracy support, data storage questions, pressure range confirmation, or warranty support, contact AUTOOL Store directly.

Pre-Sales And Product Support

Use support if you need help choosing PT503, PT520, or PT530; confirming pressure units; understanding zeroing; checking adapter requirements; comparing pressure range and accuracy; or resolving inaccurate readings during pressure measurement.

  • 3-year warranty for eligible non-human damage cases
  • PT503 / PT520 / PT530 model selection
  • Unit display and Pa support confirmation
  • Zeroing, adapter selection, and reading accuracy support
  • Data storage and pressure range confirmation
Email Supportsupport@autoolstore.com WhatsApp Support+86 189 2647 7404

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AUTOOL Differential Pressure Gauge
AUTOOL Differential Pressure Gauge

Price range: US$59.00 through US$139.00

Add to cart This product has multiple variants. The options may be chosen on the product page