Check Power Steering Fluid Condition Right at the Reservoir
The AS507 reads the light transmittance of power steering fluid through an optical probe and shows it together with fluid temperature and an OK, warning or replace status. It is a quick screening tool for power steering fluid; choose laboratory analysis when you need composition or wear-metal data.
- Optical Transmittance Test
- 350 mm PTFE Probe
- 10-Second Response
- Temperature in °C / °F
- 4 × AAA Battery Power
Key Features
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Optoelectronic Probe
A high-precision optoelectronic sensor evaluates fluid transmittance and impurity level.
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Fluid Temperature Context
A built-in temperature sensor shows fluid temperature next to the result to help judge steering system working condition.
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Flexible Probe for Reservoirs
The flexible hose probe reaches into the reservoir easily; the PTFE hose resists oil, oxidation and corrosion.
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Clear Status Screen
The backlit display shows battery level, transmittance, temperature, backlight and sound status, and the OK, warning or suggested-replacement result.
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Handheld and Independent
A silicone-lined grip and light body suit one-handed testing, and battery power keeps the check independent of the vehicle electrical system.
What’s in the Box
- AS507 power steering fluid tester with integrated flexible hose probe
- User manual
How to Use
- Wipe the probeClean off dust, residue and previous test fluid before measuring.
- Submerge the probeInsert the probe into the power steering fluid and make sure it is fully immersed.
- Start the testPress the test button to begin the optical measurement.
- Read the resultCheck transmittance, temperature and the OK, warning or suggested-replacement status, then clean the probe again.
Probe use, result interpretation and troubleshooting: AS507 user manual (PDF)
Good to Know
Care
- Clean the probe before and after every test to avoid cross-contamination.
- Use a clean, representative fluid sample for consistent results.
- Replace the batteries when the battery indicator is low.
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