AUTOOL PT650 Digital Transmission Oil Pressure Gauge
US$119.00
- 0–30 Bar ATF Pressure
- 0.5% FS Accuracy / 0.01 Resolution
- Max / Min / Differential
- Three Pressure Units
- 0–30 Bar ATF Pressure: Measure automatic-transmission oil pressure across the 0–30 bar range.
- 0.5% FS Accuracy / 0.01 Resolution: Compare readings with 0.5% FS accuracy and 0.01 display resolution.
- Max / Min / Differential: View current, maximum, minimum, and differential pressure with measurement time.
- Three Pressure Units: Switch among PSI, bar, and kg/cm² to match transmission service references.
- Oil-Pressure Connection Kit: Connect through the riveted copper adapters and oil-resistant transfer hose.
- 0–30 Bar ATF Pressure: Measure automatic-transmission oil pressure across the 0–30 bar range.
- 0.5% FS Accuracy / 0.01 Resolution: Compare readings with 0.5% FS accuracy and 0.01 display resolution.
- Max / Min / Differential: View current, maximum, minimum, and differential pressure with measurement time.
- Three Pressure Units: Switch among PSI, bar, and kg/cm² to match transmission service references.
- Oil-Pressure Connection Kit: Connect through the riveted copper adapters and oil-resistant transfer hose.
- 3-Year Warranty Main unit 3 years · Accessories 1 year
- 90-Day Returns Eligible returns within 90 days
- Official Store Genuine products · Direct support
AUTOOL PT650 · Transmission Pressure Gauge Kit
Read Transmission Pressure Through the Correct Port
Measure automatic-transmission fluid pressure through the correct service port with this transmission pressure tester, then compare the result with the transmission procedure. PT650 covers 0–30 bar and shows current, maximum, minimum, and differential pressure with measurement time. Switchable units, riveted copper adapters, and an oil-resistant hose support varied compatible connections.
- 0–30 Bar ATF Range
- Stated 0.5% FS Accuracy
- Current / Max / Min / Differential
- PSI / Bar / kg/cm² Units
- Oil-Resistant Hose
Key Features
Live, Min/Max, and Differential Transmission Pressure
Digital Pressure Measurement
Measures transmission oil pressure with a manual-listed 0-30 bar range, 0.5% FS accuracy, and 0.01 display resolution for workshop diagnosis.
2.8″ Backlit Display
The screen shows current pressure, measurement time, pressure unit, maximum pressure, minimum pressure, and differential pressure in a clear layout.
Multi-Unit Switching
Switch between PSI, Bar, and Kg/cm² to match different service habits and test references.
Data Holding And Zeroing
Supports interface lock, data holding, clear data, test time reset, and pressure zeroing before measurement.
Riveted Copper Adapters
The included adapter set uses riveted copper fittings with high hardness, wear resistance, and oxidation resistance.
Oil-Resistant Transfer Hose
The hose and connector set supports transmission-pressure connection work.
Four AAA Batteries
PT650 uses four AAA batteries and 6V operating voltage. Install batteries with correct polarity and close the battery cover securely.
3 Years Warranty Support
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Service Workflow
Connect at the Specified Transmission Port
Remove The Main Oil Pressure Plug
Remove the main oil pressure plug on the automatic transmission housing according to the vehicle service procedure.
Connect The Adapter
Select the adapter that matches the vehicle model and connect it to the measuring probe.
Zero The Pressure
Reset the pressure value to zero before testing to help keep the reading reliable.
Connect To The Transmission
Connect the measuring probe to the transmission pressure test point securely.
Start And Shift
Start the engine and perform gear shifting as required by the vehicle test process.
Read The Pressure
The pressure gauge displays measured pressure and related readings for diagnosis.
Transmission Test Connection
Select the appropriate transmission pressure adapter, zero the gauge and connect the hose before starting measurement. Follow the operating procedure to read and record transmission pressure.
Safe Use
Control Hot ATF and Hose Placement
Use Four AAA Batteries
PT650 uses four AAA batteries and 6V operating voltage. Install batteries with correct polarity and close the battery cover securely.
Zero Before Testing
Perform pressure zero setting before measurement. The real-time pressure should display as 0 before testing begins.
Do Not Overload
The manual lists 40 bar overload pressure. Do not use PT650 beyond its intended pressure range or in unsuitable systems.
Use The Correct Tool
PT650 is for transmission pressure testing. Use PT610, PT620, PT630 / PT635, PT640, or PT660 for cylinder, engine oil, fuel, GDI fuel, or brake pressure systems.
Power Off Correctly
After measurement, long press the power button for 2 seconds to shut down, and do this under atmospheric pressure.
Store Dry
Check tightened and connected parts regularly, avoid corrosive liquids, and store the product in a dry, ventilated place when not in use.
Interpret the Result in Context
Use the transmission-specific port, oil-rated hose and matching adapter, then read pressure at the gear, temperature and engine-speed condition required by the service procedure.
Inspect and Maintain the Tester
Avoid rubbing the housing against rough surfaces. Maintain parts that contact chemical media to improve corrosion resistance, and replace aging wires or worn parts if they affect safe use.
Model Comparison
Choose the Right Pressure Test Kit
Model Guide
Choose one or more models. PT650 is selected by default.
| Product Name | PT610 Cylinder Pressure Gauge | PT620 Oil Pressure Gauge Kit | PT630 Fuel Pressure Gauge | PT635 Fuel Pressure Gauge(High-end version) | PT640 GDI Fuel Pressure Gauge | PT650 Transmission Oil Pressure Gauge | PT660 Brake System Pressure Tester |
|---|---|---|---|---|---|---|---|
| Measurement & Readout | |||||||
| Display Screen | 2.8-inch | 2.8-inch | 2.8-inch | 2.8-inch | 2.8-inch | 2.8-inch | 3-inch |
| Data Storage | 6 Sets of Data | × | × | × | × | × | Locks the current reading; check the current specification for multi-record storage. |
| Pressure Range | 0-426.6psi 0-30kg/cm² 0-29.4bar | 0-426.6psi 0-30kg/cm² 0-29.4bar | 0-426.6psi 0-30kg/cm² 0-29.4bar | 0-426.6psi 0-30kg/cm² 0-29.4bar | 0-5221.3psi 0-367kg/cm² 0-360bar | 0-426.6psi 0-30kg/cm² 0-29.4bar | 0–210 bar |
| Dual-Channel Pressure Testing | × | × | × | × | × | × | Two brake positions/calipers via L/R channels |
| Data Lock/Clear/Record | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Multi-Parameter Display | Current Temp Measurement Time Real-Time Pressure Value Average Pressure Value Pressure value of each cylinder | Measurement Time Pressure Maximum Pressure Minimum Pressure Differential | Maximum Value Minimum Value Differential Pressure Value Measurement Time Real-Time Pressure Value | Maximum Value Minimum Value Average Value Temperature Value Measurement Time Real-Time Pressure Value | Maximum Value Minimum Value Differential Pressure Value Measurement Time Real-Time Pressure Value | Maximum Value Minimum Value Differential Pressure Value Measurement Time Real-Time Pressure Value | Left/right real-time pressure, minimum, maximum, and front/rear pressure difference |
| Pressure Units | Psi Bar Kg/cm² | Psi Bar Kg/cm² | Psi Bar Kg/cm² | Psi Bar Kg/cm² | Psi Bar Kg/cm² | Psi Bar Kg/cm² | psi / bar / kg/cm² |
| Connections & Applications | |||||||
| Accessory Connectors | 10 Types | 18 Types | 17 Types | 31 Types | 3 Types | 12 Types | Check the selected package contents for included adapter types and quantities. |
| Equipped Toolbox | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Applicable Scenarios | Engine Cylinder | Engine Oil Circulation System | Automotive Fuel System | Automotive Fuel System | Fuel Injection Pump Pressure in the Automotive Direct Injection System | Automotive Transmission Pressure | Internal brake-system fluid pressure; two-position/caliper comparison |
Manual & Support
Find the Manual and Adapter Guidance
AUTOOL PT650 User Manual
Open the PDF manual for AUTOOL PT650 digital pressure measurement, unit selection, adapter and oil-resistant hose setup, data hold, zeroing, safety and troubleshooting support.
Package Contents
See What Comes in the Box
- Main UnitAUTOOL PT650 transmission oil pressure gauge with measuring probe
- ToolboxEquipped carrying case
- ItemManual AUTOOL PT650 user manual
- Transfer HoseOil-resistant transfer hose
- Connector Set12-type accessory connector set
- Retail BoxAUTOOL PT650 product packaging
Buyer Questions
Pressure Connection and Reading Questions
What Is AUTOOL PT650 Used For?
AUTOOL PT650 is an automatic transmission pressure tester for transmission oil pressure diagnosis. It should not be used as a substitute for cylinder, engine oil, fuel, GDI fuel, or brake pressure testers.
What Pressure Range And Units Does PT650 Support?
The manual lists a 0-30 bar range, 0.5% FS accuracy, 0.01 bar / 0.01 kg/cm² / 0.01 PSI resolution, and Bar, Kg/cm², and PSI units. The product feature image also presents equivalent display ranges of 0-426.6 psi, 0-30 kg/cm², and 0-29.4 bar.
Does PT650 Store 6 Sets Of Test Data?
No. PT650 supports data holding, interface lock, data clearing, and pressure zeroing, but it does not store data. Six-set data storage is a PT610 feature.
What Batteries Does PT650 Use?
PT650 uses four AAA batteries and has a 6V operating voltage. Open the battery cover on the back of the device, insert four 1.5V AAA batteries with correct polarity, and close the cover securely before use.
How Do I Zero The PT650 Before Testing?
Long press the zero / clear button for pressure zero setting before measurement. The real-time pressure display should show 0 before you begin the transmission pressure test.
What Accessories Are Included With PT650?
Package contents: PT650 main unit, carrying case, retail box, user manual, oil-resistant transfer hose, and connector set. The PT650 comparison lists 12 types of accessory connectors.
Can PT650 Be Used For Fuel, GDI, Cylinder, Or Brake Pressure Testing?
PT650 is for automotive transmission pressure testing. For other systems, choose the corresponding PT series model: PT610 for cylinder pressure, PT620 for engine oil pressure, PT630 / PT635 for fuel pressure, PT640 for GDI fuel pressure, and PT660 for brake system pressure.
How Should I Turn Off PT650 After Measurement?
After measurement is complete, long press the power button for 2 seconds to shut down. The manual states that shutdown should be conducted under atmospheric pressure. The device also automatically powers off after 5 minutes of inactivity when no pressure is applied.
How Long Is The Warranty?
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Reg Thomson ✓ Verified Purchase –
The item arrived on time and in good condition.
The item arrived on time and in good condition. I’m a very satisfied customer. The entire process went well from start to finish. I have no complaints!
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Received my shipment today!
Received my shipment today! I’ll come back with feedback after using it
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Good
I also purchased the PT620 and PT610, each of which comes in its carrying case, which makes it easy to store away after use