AUTOOL AS507 evaluates the condition of power steering fluid by measuring fluid transmittance and impurity levels. With big data algorithm analysis, a high-precision optical probe, built-in temperature sensing, and a 2.8-inch backlit display, it helps users quickly judge whether the power steering fluid is in good condition, needs attention, or should be replaced.
AS507 combines optical transmittance testing, temperature sensing, a flexible PTFE probe, and a readable LCD interface to make power steering fluid condition checks faster and easier.
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High-Precision Optical Probe
Integrated with a high-precision optoelectronic sensor to support more accurate power steering fluid measurement.
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Oil Temperature Display
Built-in temperature sensor helps evaluate power steering system working condition and supports °C / °F display.
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350mm Flexible PTFE Hose Probe
The 350mm probe reaches the reservoir more easily. PTFE hose material resists oil, oxidation, and corrosion.
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Clear Display Status
The screen shows battery level, transmittance, temperature, backlight, sound, OK, warning, and suggested replacement status.
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User-Friendly Handheld Design
Silicone-lined grip and lightweight body make single-handed testing easier in workshop conditions.
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2.8-inch Backlit LCD
Large backlit display improves readability under different lighting conditions and supports quick test-result review.
Specifications
Specifications And Interface Details
Review the AS507 power supply, temperature range, response time, probe material, cable length, size, and supported display information before ordering.
Testing Capability
Product
AUTOOL AS507 Power Steering Fluid Tester
Applicable Fluid
Power steering fluid
Detection Method
Optical probe / transmittance analysis with impurity-level evaluation
Status Display
OK, warning, and suggested replacement status
Response Time
10s response
Display, Probe And Power
Display
2.8-inch backlit LCD display
Temperature Units
°C / °F
Temperature Measurement Range
0-85°C / 0-185°F
Operating Temperature
-10°C~60°C
Operating Voltage
6V, 4 AAA batteries
Test Cable Length
80cm test cable length
Probe Hose Material
Teflon / PTFE hose material
Product Size
175mm × 72mm × 29mm
Support
Manual
AUTOOL AS507 user manual available for download
Warranty
3-year warranty for eligible non-human damage cases
Maintenance
Lifetime maintenance support
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Testing Capability
ProductAUTOOL AS507 Power Steering Fluid Tester
Applicable FluidPower steering fluid
Detection MethodOptical probe / transmittance analysis with impurity-level evaluation
Status DisplayOK, warning, and suggested replacement status
Response Time10s response
Display, Probe And Power
Display2.8-inch backlit LCD display
Temperature Units°C / °F
Temperature Measurement Range0-85°C / 0-185°F
Operating Temperature-10°C~60°C
Operating Voltage6V, 4 AAA batteries
Test Cable Length80cm test cable length
Probe Hose MaterialTeflon / PTFE hose material
Product Size175mm × 72mm × 29mm
Support
ManualAUTOOL AS507 user manual available for download
Warranty3-year warranty for eligible non-human damage cases
MaintenanceLifetime maintenance support
How To Use
How To Use
AS507 is designed for quick power steering fluid checks. Clean the probe, insert it into the fluid, start the test, and read transmittance, temperature, and condition status on the screen.
Wipe The Probe
Clean the test probe before measurement to avoid contamination from dust, previous test fluid, or residue.
Submerge The Probe
Insert the testing probe into the power steering fluid and make sure the probe is properly submerged.
Start The Test
Press the test button to start measurement. The tester analyzes fluid condition through optical detection.
Read The Result
The interface displays transmittance, temperature, and condition status such as OK, warning, or suggested replacement.
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Use Notes
Clean the probe before and after testing.
Make sure the probe is properly submerged in the power steering fluid.
Avoid contaminating the probe with other oil types.
Read OK / Warning / Replace status together with transmittance and temperature.
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What Is In The Box
What Is In The Box
The package image shows the AS507 tester, retail box, and user manual. AAA batteries are required for use.
Main UnitAUTOOL AS507 Power Steering Fluid Tester
Package BoxAS507 retail package shown in the image
ManualUser manual included
ProbeIntegrated flexible hose probe
Power Supply4 AAA batteries required
Product Comparison
Product Comparison
Compare AUTOOL automotive fluid analyzers before choosing. AS507 is designed for power steering fluid transmittance testing, while other AS series testers focus on brake fluid, engine oil, transmission fluid, or brake fluid boiling point.
AS507 FocusPower steering fluid tester using optical probe technology and transmittance analysis
Compared With AS503 / AS505AS503 tests engine oil quality; AS505 tests transmission fluid. Both target different fluid types from AS507
Compared With AS502 / AS506AS502 tests brake fluid water content; AS506 tests brake fluid boiling point
Decision CheckChoose by fluid type first: brake fluid, engine oil, transmission fluid, brake boiling point, or power steering fluid
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Manual And Downloads
Manual And Downloads
Download the AUTOOL AS507 manual for setup, button functions, measurement guidance, and operating notes.
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AUTOOL AS507 User Manual
Open the PDF manual for AS507 operating instructions, display references, button functions, and testing notes.
Compare AUTOOL automotive fluid testers by fluid type before choosing the right tool for brake fluid, engine oil, transmission fluid, boiling point, or power steering fluid testing.
Select options
This product has multiple variants. The options may be chosen on the product page
Select options
This product has multiple variants. The options may be chosen on the product page
Before You Order And Use
Before You Order And Use
AS507 is a fluid-quality evaluation tool for power steering fluid. Keep the probe clean and use the displayed data together for a more reliable judgment.
Use And Maintenance Notes
AS507 is designed for power steering fluid testing.
Do not mix-test different fluids without cleaning the probe.
Clean the probe before and after each test.
Use the displayed transmittance, OK / Warning / Replace status, and temperature together when judging fluid condition.
The tester uses 4 AAA batteries; replace batteries when the battery level is low.
Store the probe clean and dry after use.
Questions And Answers
These answers cover what AS507 tests, how results are judged, oil temperature display, probe design, battery requirements, operation, compatible fluid type, AS series differences, and warranty support.
AS507 tests power steering fluid condition by evaluating transmittance and impurity level. It is designed to help users judge whether power steering fluid is in good condition, needs attention, or should be replaced.
AS507 uses a high-precision optical probe and big data algorithm analysis to evaluate fluid transmittance and impurity level. The screen shows transmittance, temperature, and status guidance such as OK, warning, or suggested replacement.
Yes. AS507 includes a temperature sensor and can display temperature in °C or °F. The temperature measurement range is 0-85°C / 0-185°F.
The flexible probe is 350mm long. The test cable length is 80cm, and the hose uses Teflon / PTFE material for oil resistance, oxidation resistance, and corrosion resistance.
AS507 uses 4 AAA batteries and operates at 6V. Replace the batteries when the battery level is low.
Wipe the probe, insert it into the power steering fluid, press the test button, and read the result on the display. Clean the probe before and after testing to avoid contamination.
AS507 is designed for power steering fluid testing. For other fluids, choose the matching AS series tester: AS502 for brake fluid water content, AS503 for engine oil quality, AS505 for transmission fluid, or AS506 for brake fluid boiling point.
AS507 focuses on power steering fluid transmittance and impurity evaluation. AS502 tests brake fluid water content, AS503 tests engine oil quality, AS505 tests transmission fluid, and AS506 tests brake fluid boiling point. Choose the tester according to the fluid type first.
AUTOOL provides a 3-year warranty for eligible non-human damage cases and lifetime maintenance support. Contact AUTOOL Store support if you need help with product use, test results, probe care, display issues, or model selection.
Warranty And Contact
Warranty And Contact
For AS507 product support, manual requests, probe care, display questions, battery replacement, test-result interpretation, or AS series model selection, contact AUTOOL Store directly.
Pre-Sales And Product Support
Use support if you need help confirming whether AS507 is right for power steering fluid testing, comparing AS507 with AS502 / AS503 / AS505 / AS506, reading transmittance and temperature results, or handling probe, display, battery, and test-result questions.
3-year warranty for eligible non-human damage cases
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Jack Quinn H Johnson (verified owner) –
Good
This product is very easy to use, the price is very cheap, and most importantly, the quality is very good
asdits (verified owner) –
Quick detection and easy maintenance
Quick detection and easy maintenance
Scotty Phillips (verified owner) –
Everything seems fine
The measured value reflects the existence of impurities and pollutants in the oil. It can detect impurities produced by mechanical friction of metals.