Autool PT530 | 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 PT530 is a digital air pressure tester with a measurement range of −100 to +300 kPa. The PT530 measures positive and negative pressure via two inputs: IN1 for positive pressure and IN2 for negative pressure, including the difference between them. Whilst the entry-level model maxes out at 200 kPa, this one reaches 300 kPa, and it measures with greater precision.
The unit reads digitally and records the highest and lowest values during measurement, plus the difference between them and the elapsed time. Connection is made using the supplied adapters: seven adapter types. Outer diameters from 4 to 12 mm, plus individual sizes of 6, 8, 9, 16 and 20 mm and a step-up adapter from 8 to 20 mm. It runs on four AAA batteries and is usable from −10 to +60 °C.
KEY BENEFITS
POINTS TO NOTE
Application and functionality
A pressure gauge tells you whether a system achieves the pressure it should. That's the difference between guesswork and actual measurement – and it saves replacing components that are perfectly fine.
Where to connect it
- Intake manifold: The negative pressure the engine builds, as an initial indicator of a running problem.
- Brake booster: Whether the booster maintains the negative pressure it should hold.
- Crankcase pressure: Whether the crankcase builds positive pressure, for example from blow-by past the piston rings.
- Exhaust side: The back pressure in the exhaust system.
What you see on the display
- Magnet on the back: The unit hangs on any metal surface, leaving both hands free.
- Illuminated keys: Operable even in a dark engine bay.
- Torch on top: To see the connection where you attach the hose.
- Two inputs at once: IN1 for positive pressure, IN2 for negative pressure, with the difference between them.
- Ten units: From kPa and hPa to bar, psi and mmHg.
- Store twenty-nine readings: So you can compare without having to jot everything down.
- Lanyard attachment: So it won't slide off the wing.
Which pressure gauge you need
Autool offers seven pressure gauges that look identical from the outside but have a different sensor and different adapter set. The difference lies in which system you measure and how high the pressure goes there. You're looking at the PT530 right now.
| Model | What it measures | Range | Adapters |
|---|---|---|---|
| PT520 | Air and negative pressure | −100 to +200 kPa | Seven adapter types |
| PT530 (this product) | Air and negative pressure | −100 to +300 kPa | Seven adapter types, with sizes from 4 to 20 mm |
| PT610 | Compression pressure from a petrol engine | 0 to 29.4 bar | Ten adapter types |
| PT620 | Engine oil pressure | 0 to 29.4 bar | Eighteen adapter types |
| PT630 | Fuel pressure in the low-pressure line | 0 to 29.4 bar | Comprehensive kit with adapter nipples and hose couplings |
| PT640 GDI | Fuel pressure in a direct injection system | 0 to 360 bar | Three adapter types |
| PT650 | Oil pressure in an automatic transmission | 0 to 29.4 bar | Twelve adapter types |
Package contents
- 1x Autool PT530 air pressure gauge
- 1x Adapter set: Seven adapter types
- 1x Storage case
- 1x User manual
Technical specifications
| Specification | Description |
|---|---|
| Brand | Autool |
| Model | PT530 |
| Type | Air pressure gauge |
| Measuring range | −100 to +300 kPa (−1000 to +3000 hPa) |
| Accuracy | ±0.25% of full scale |
| Maximum measuring pressure | 300 kPa |
| Display | 2.8-inch LCD with backlight and illuminated buttons |
| Adapters | Seven adapter types |
| Case | Included |
| Power supply | Four 1.5 V AAA batteries |
| Operating temperature | −10 °C to +60 °C |
| Dimensions | 165 × 74 × 33 mm |
| SKU | PT530 |










