AUTOOL PT650 ATF Transmission Fluid Pressure Gauge

Digital Transmission Oil Pressure Testing Device

The AUTOOL PT650 is a digital transmission oil pressure tester for diagnosing automatic transmission faults. It gives workshops and transmission specialists accurate line pressure readings to help pinpoint slipping, harsh or delayed shifts, worn pumps, sticking valves and internal leaks before the transmission comes apart.

Connect it to the transmission test port using the included 12-type copper adapter set. The 2.8-inch backlit screen shows live pressure along with maximum, minimum and differential readings, so you can compare pressure across gears and engine speeds against the manufacturer's specification.

AUTOOL PT650 Digital Transmission Oil Pressure Tester Kit – ATF Pressure Gauge

Main Features

  • Digital pressure reading: 0–29.4 bar / 0–426.6 psi / 0–30 kg/cm², with 0.01 resolution.
  • 0.5% FS accuracy: precise readings for comparing results with factory specifications.
  • Max, min and differential values: capture pressure changes during gear shifts and engine speed changes.
  • Data hold and lock: freeze a reading so you can record it after the test.
  • Test timer: shows measurement time alongside pressure.
  • 12-type adapter set: riveted copper connectors to fit common transmission test ports.
  • Oil-resistant hose: built for automatic transmission fluid.
  • 2.8-inch backlit display: easy to read under the vehicle or in low light.
  • Switchable units: bar, psi and kg/cm².
  • Auto power-off: after 5 minutes of inactivity to save battery.

Package Includes

  • 1 × AUTOOL PT650 digital pressure gauge with measuring probe
  • 1 × Oil-resistant transfer hose
  • 1 × 12-type connector adapter set
  • 1 × Carry case
  • 1 × User manual

Why Transmission Specialists Choose the PT650

Digital display, 0.01 resolution Clearer, more precise readings than an analogue gauge
0.5% FS accuracy Confident comparison against factory pressure specs
Max / min / differential readings Spot pressure drops and spikes during shifts
Data hold and lock Record readings without rushing
12-type copper adapter set Fits a wide range of transmission test ports
Oil-resistant hose Safe and durable with ATF
Backlit 2.8-inch screen Readable under the vehicle and in low light
Bar, psi and kg/cm² units Match the units in any workshop manual

AUTOOL PT650 professional transmission pressure tester

Which AUTOOL Pressure Tester Do I Need?

Each AUTOOL digital pressure tester is built for one system, with the pressure range and fittings to match. Choose by the system you need to test.

ModelWhat it testsPressure range
AUTOOL PT610 digital engine compression testerAUTOOL PT610Engine cylinder compressionWorn rings, valves or head gaskets0–29.4 bar
0–426.6 psi
View PT610
AUTOOL PT620 digital engine oil pressure testerAUTOOL PT620Engine oil pressureLow oil pressure, worn oil pumps or bearings0–29.4 bar
0–426.6 psi
View PT620
AUTOOL PT640 digital GDI high-pressure fuel testerAUTOOL PT640GDI high-pressure fuel (petrol)Weak high-pressure pumps on direct-injection engines0–360 bar
0–5221 psi
View PT640
AUTOOL PT650 digital transmission oil pressure testerAUTOOL PT650Automatic transmission oil pressureSlipping, harsh or delayed gear shifts0–29.4 bar
0–426.6 psi
View PT650

Never connect a low-pressure tester (0–30 bar) to a GDI or diesel high-pressure circuit, and always depressurise the system before connecting. Specifications are based on AUTOOL data. Refer to each product page or contact us for more information.

AUTOOL PT650 Brake Pressure Gauge

Application Automatic transmission oil pressure
Pressure Range 0–29.4 bar / 0–426.6 psi / 0–30 kg/cm²
Overload Limit 40 bar
Accuracy 0.5% FS
Resolution 0.01
Units bar, psi, kg/cm²
Readings Displayed Real-time, maximum, minimum, differential, measurement time
Functions Zero, data hold, data lock, clear, timer reset
Display 2.8-inch backlit screen
Data Storage Not supported
Temperature Measurement Not supported
Adapters 12-type riveted copper connector set
Power 4 × AAA batteries (6 V)
Auto Power-Off After 5 minutes of inactivity
Warranty 3 years main unit, 1 year accessories (manufacturer)

Digital ATF pressure diagnostic tool AUTOOL PT650

Delivery

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Need it sooner? Express shipping is also available—check if your postcode is in the Next Day Delivery network.

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Warranty

All AZscanners products are backed by a 12-month warranty (unless otherwise stated). We stand by the quality of our tools and will repair or replace your item if a covered fault arises.

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