Measure Positive, Negative and Differential Pressure and Save the Readings
The PT520 compares two pressure inputs for intake manifold, brake booster, crankcase and exhaust valve checks, stores readings for later review and switches among ten units. Use it with non-corrosive oil, water, air or natural gas only.
- Dual-Port Differential
- 29 Stored Records
- Max/Min Recording
- 10 Pressure Units
- Built-In Light
Key Features
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Positive, Negative and Differential
Two pressure input ports measure the pressure at two locations at once and show the difference.
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Lock, Zero and Store
Lock the current reading, zero when needed and review stored records later.
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Readable Backlit Screen
Shows battery level, records, Max/Min values, differential pressure, real-time positive and negative pressure, working time and units.
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Workshop-Friendly Details
Anti-slip silicone, side lanyard, illumination light, Type-C interface, data lock and calibration buttons.
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Adapters for Varied Ports
Pressure adapters in several sizes connect to different test ports and pipe diameters.
Model Comparison
| PT503 | PT520 | PT530 | |
|---|---|---|---|
| Display | 1.8-inch | 2.8-inch | 2.8-inch |
| Pressure range | -101 to 200 kPa | -100 to 200 kPa | -100 to 300 kPa |
| Accuracy | ±0.5% FS | ±0.3% FS | ±0.25% FS |
| Flashlight | No | Yes | Yes |
| Magnetic back / button light | No / No | No / No | Yes / Yes |
| Toolbox | No | No | Yes |
What’s in the Box
- PT520 digital manometer
- Transparent test hoses
- Connector adapters for different pipe diameters
- User manual
- Retail box
How to Use
- Choose the test pathConfirm the system, medium, expected range and operating condition before selecting an adapter.
- Connect safelyDepressurize when required and fit the correctly rated adapter and hose without forcing threads.
- Set the conditionRun the system only as the vehicle procedure directs and watch every connection for leaks.
- Capture the readingRecord value, unit and condition; repeat when the procedure calls for a comparison or decay period.
- Depressurize and confirmReturn the system to a safe state, remove the adapter and restore the connection.
Button functions, unit switching and records: PT520 user manual (PDF)
Good to Know
Caution
- Pa is not a display unit in the current version; choose another model if you need direct Pa readings.
- Use only non-corrosive media within the rated range; confirm compatibility before special HVAC, gas or non-automotive use.
Care
- Check the on-screen battery level before long tests or field work.
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