Autool PT650 | Transmission Oil 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 PT650 is a digital transmission-oil-pressure-tester, designed for diagnosing transmission fluid pressure in automatic transmission systems. The gauge offers a measurement range of 0–29.4 bar(0–426.6 psi / 0–30 kg/cm²). With a comprehensive set of 10 adapters included, this gauge works with a wide variety of vehicles.
The device is equipped with a 2.8-inch HD LCD display with backlit display for clear readability. The PT650 stores measurement data up to a maximum of 6 test cycleson and displays the current, maximum and minimum pressure in real-time, as well as the pressure differential (ΔP). The kit includes a reinforced rubber hose and corrosion-resistant brass fittings.
KEY FEATURES
IMPORTANT NOTES
Application and Functionality
This instrument is used for measuring and analyzing oil pressure in automatic transmissions, helping you identify potential issues.
- Digital pressure gauge:Displays current, maximum and minimum pressure with 0.01 resolution.
- Data Storage:Ability to save results from up to 6 test cycles for later analysis and comparison.
- Adjustable units: Switch between psi, bar, and kg/cm² using the control buttons.
- Clear display: 2.8-inch LCD screen with backlight for crisp readability in all lighting conditions.
Common transmission issues diagnosed
- Transmission slipping under load
- Hard or delayed shifting
- ATF fluid overheating
- Torque converter / lock-up clutch diagnosis
- Main line pressure (system pressure) check
What's included
- 1x Autool PT650 digital pressure gauge
- 1x Pressure sensor with hose
- 1x Adapter 1/8"-28 OD
- 1x Adapter M8x1.0 OD & M10x1.0 ID
- 1x Adapter 1/8"-28 OD & M10x1.0 ID
- 1x Adapter M10x1.0 OD & M10x1.0 ID
- 1x Adapter NPT 3/8" OD & M10x1.0 ID
- 1x Adapter NPT 1/4" OD & M10x1.0 ID
- 1x Adapter 1/8"-28 ID
- 1x Adapter 1/8"-28 OD & 1/4"-19 OD
- 2x Adapter 1/8"-28 ID & OD
Technical specifications
| Specification | Description |
|---|---|
| Brand | Autool |
| Model | PT650 |
| Measurement Range | 0–426.6 psi / 0–30 kg/cm² / 0–29.4 bar |
| Resolution | 0.01 |
| Display | 2.8-inch HD LCD with backlight |
| Connections | Set of 10 adapters (1/8", 1/4", NPT, M8, M10) |
| Material | Reinforced rubber hose, brass fittings |
| Application | Automatic transmission fluid (ATF) |










