Autool PT520 | Air Pressure Tester
Warranty directly via AsTools
Warranty directly via AsTools
We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.
2 years warranty on all products
2 years warranty on all products
All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.
Easy returns
Easy returns
You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.
Professional customer service
Professional customer service
Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!
The Autool PT520 is a digital pressure gauge designed for measuring air pressure and differential pressure. The device features a measurement range of -100 to 200 kPa and an accuracy of ±0.3% FS. The PT520 measures both positive and negative pressure, making it ideal for diagnostic applications in the automotive industry — such as testing intake manifolds, brake boosters and crankcase systems.
The tester supports 10 different measurement units (kPa, psi, mbar, mmHg, etc.), easily selectable via the menu. The backlit LCD display simultaneously shows readings from both inputs (IN1 and IN2) and the calculated differential pressure (ΔP). Max/min recording, data logging for 29 datasets and data hold allow you to capture measurements and analyze them later.
KEY FEATURES
LIMITATIONS
Applications and functionality
The PT520 is used for diagnosing pressure systems in vehicles and HVAC installations. Measures both absolute and differential pressure.
- Differential Pressure Measurement: Calculates and displays the pressure difference between two inputs (P1 − P2).
- Select Measurement Units: 10 units including kPa, psi, mbar, inHg and mmH2O.
- Data Storage: Up to 29 measurement sets that can be recalled later for analysis.
- Max/Min Mode: Records the highest and lowest pressure readings measured during a session.
- Data Hold Function: Locks the current reading on the display for easy viewing.
- Zero Calibration: Reset the sensor to zero for accurate measurements.
- Backlit LCD Display: Clear readability in low-light environments.
- Auto Shutoff: After 10 minutes of inactivity to conserve battery life.
Typical Applications
- Measure intake manifold vacuum
- Test brake booster vacuum
- Diagnose crankcase ventilation
- Check exhaust valves
- Calibrate HVAC systems
Package Contents
- 1x Autool PT520 digital pressure gauge
- 2x Hose
- 7x Measurement adapter (OD 4-12 mm, 6 mm, 8 mm, 9 mm, 16 mm, 20 mm, 8-20 mm)
- 1x User Manual
Technical Specifications
| Specification | Description |
|---|---|
| Brand | Autool |
| Model | PT520 |
| Measurement Range (kPa) | -100 to 200 kPa |
| Measurement Range (hPa) | -1000 to 2000 hPa |
| Accuracy | ±0.3% FS |
| Resolution | 0.1 kPa / 1 hPa |
| Measurement Units | kPa, hPa, Torr, mbar, inHg, mmHg, inH2O, mmH2O, psi, kg/cm² |
| Inputs | 2 (dual port for ΔP measurement) |
| Power Supply | 4x 1.5V AAA batteries (not included) |
| Operating Temperature | -10 °C to 60 °C |
| Storage Temperature | -20 °C to 65 °C |
| Data Storage | 29 datasets |
| Dimensions | 165 x 74 x 33 mm |
