AUTOOL AS506Product OverviewThe AUTOOL AS506 is a handheld automotive brake fluid tester designed to help judge whether brake fluid should be replaced by checking boiling point performance. It supports DOT 3, DOT 4, DOT4 , DOT4ESP, DOT 5, DOT 5.1, DOT5.1ESP, ENV4, and ENV6 brake fluids, provides Normal Mode and Brand Mode, and delivers a test result in about 16 seconds.Boiling Point Test Normal / Brand Mode 16s Detection 12V Battery Power0-320°CTest Range9 TypesBrake Fluid14 BrandsBrand References3 YearsWarranty Click to enlarge Click to enlargeBefore You Order And UseBefore You Order And UseAS506 heats brake fluid during the boiling point test. Review the sample volume, 12V power rule, hot-fluid warning, and post-test handling instructions before use.Use 12V Battery PowerClamp the tester to a 12V vehicle battery. The working voltage is 12V, with a minimum of 10V. Do not reverse the positive and negative clamps or short-circuit with the vehicle.Use Enough Brake FluidFill the beaker with more than 40ml and not more than 50ml of brake fluid. Do not test without enough fluid, because empty boiling may damage the test stick.Wear Eye ProtectionWear goggles and avoid splashing brake fluid into your eyes. Follow the brake fluid manufacturer’s safety data sheet and the vehicle service manual.Avoid Burns After TestingThe test stick and fluid become hot after the boiling point test. Do not touch them directly after testing.Do Not Reuse Tested FluidDo not pour tested brake fluid back into the reservoir. The fluid structure has been changed by boiling, and reuse may affect driving safety.Brake Fluid OnlyAS506 is designed for brake fluid detection. Do not use it for other liquids or non-automotive purposes.Safety ReminderUse by professional technicians or trained service personnel only.Keep the tester away from children and untrained users.If the same brake fluid sample is tested repeatedly, different results may appear because the sample has already been boiled and changed.After testing, remove the unit vertically to avoid spilling brake fluid.Key FeaturesKey FeaturesAS506 focuses on boiling point detection for brake fluid maintenance decisions, with dual test modes, fast detection, clear OLED prompts, wide brake fluid coverage, and reverse polarity protection.Dual Mode SelectionUse Normal Mode for general brake fluid type selection or Brand Mode when you want to reference one of the supported common brake fluid brands.16-Second Fast DetectionPress and hold the S button for about 16 seconds. The tester displays live fluid temperature and completes the result after the progress bar finishes.Boiling Point MeasurementAS506 quickly obtains the minimum boiling point of brake fluid and provides official dry and wet boiling point values for reference.Wide Brake Fluid CoverageSupports DOT3, DOT4, DOT4 , DOT4ESP, DOT5, DOT5.1, DOT5.1ESP, ENV4, and ENV6 brake fluid types.Clear OLED InterfaceThe screen prompts mode selection, brake fluid type, voltage, test status, live temperature, and final test result for easier operation.No Consumable Test SticksThe tester does not require consumable test sticks for routine testing, helping reduce repeated testing costs when maintained correctly.Reverse Polarity ProtectionBattery polarity reverse protection helps reduce risk during 12V battery connection, but users should still connect red to positive and black to negative.3-Year WarrantyFor eligible non-human damage cases, AUTOOL provides 3-year warranty support and lifetime maintenance service guidance.Workshop-Friendly KitThe package includes the main tester, beakers, injection sampler, hose, carry case, user manual, and retail box as shown in the Packing List image. Click to enlarge Click to enlarge Click to enlarge Click to enlargeCompatibility And FitmentCompatibility And FitmentAS506 supports 9 brake fluid types and two test modes, so users can test by general brake fluid type or by built-in brand reference when applicable.Supported Brake Fluid TypesDOT3, DOT4, DOT4 , DOT4ESP, DOT5, DOT5.1, DOT5.1ESP, ENV4, and ENV6.Normal ModeUse Normal Mode when you want to select the brake fluid type directly, such as DOT3, DOT4, DOT5, or DOT5.1.Brand ModeUse Brand Mode when testing by built-in brand reference. Select the brand and corresponding brake fluid type before testing.14 Brand ReferencesBrand Mode covers ATE, TRW, BOSCH, MOBIL, TOTAL, FUCHS, MOTUL, DELPHI, KUNLUN, FERODO, BREMBO, TEXTAR, MONARCH, and CHANGCHENG.How To UseHow To UseUse the injection sampler to collect brake fluid, connect AS506 to a 12V battery, select the proper mode and fluid type, then press and hold the S button for about 16 seconds to complete the test.Collect Brake FluidUse the injection sampler to suck up brake fluid and fill the beaker. Keep the sample above the 40ml scale and not more than 50ml.Connect 12V Battery PowerConnect the red clamp to battery positive and the black clamp to battery negative. The tester powers on automatically after correct connection.Select Mode And Fluid TypeSelect Normal Mode or Brand Mode, then choose the brand and brake fluid type such as DOT3, DOT4, DOT5, or DOT5.1.Immerse The Test StickPut the test stick into the beaker and make sure the sampling hole is immersed in the brake fluid. Bleed air bubbles from the test head cavity before testing.Press And Hold S For 16sAfter entering the ready interface, press and hold the S button for about 16 seconds. Wait until the progress bar is complete to obtain the result.Use NotesDo not shake, knock, or drop the test head or heating bar.The live fluid temperature and battery voltage are displayed during testing.Remove the unit vertically after testing to avoid spilling brake fluid.Do not reuse the tested brake fluid in the brake fluid reservoir.After testing, empty the brake fluid and use about 50ml of water to clean residual brake fluid from the test stick. Click to enlargeSpecificationsAUTOOL AS506 Product SpecificationsAS506 is a compact 12V brake fluid boiling point tester with 16-second detection, 0-320°C measurement capability, 0-50°C working temperature range, and a Ø88 × 146mm main unit body.DetectionProductAUTOOL AS506 Brake Fluid Boiling Point TesterDetection ObjectAutomotive brake fluid boiling pointDetection TechnologyFlash point heating technologyDetection TimeAbout 16 secondsTest Mode SelectionNormal Mode / Brand ModeTemperature Unit Switching°C / °FBrake Fluid RangeApplicable Brake Fluid TypesDOT3, DOT4, DOT4 , DOT4ESP, DOT5, DOT5.1, DOT5.1ESP, ENV4, ENV6Wet Boiling Point Range140-205°C / 284-401°F ±5%Dry Boiling Point Range160-320°C / 320-608°FTemperature Measurement Range0-320°C / 0-608°FPower And OperationWorking Voltage12V, minimum 10VWorking Temperature Range0-50°CDisplayOLED displayControlsTAB key and START / S keyProtectionBattery polarity reverse protectionSize And PackageMain Unit DimensionsØ88 × 146mm / Ø3.46 × 5.75inPackage Weight0.6kgWarranty3 years for eligible non-human damage cases; lifetime maintenance support Click to enlarge DetectionProductAUTOOL AS506 Brake Fluid Boiling Point TesterDetection ObjectAutomotive brake fluid boiling pointDetection TechnologyFlash point heating technologyDetection TimeAbout 16 secondsTest Mode SelectionNormal Mode / Brand ModeTemperature Unit Switching°C / °F Brake Fluid RangeApplicable Brake Fluid TypesDOT3, DOT4, DOT4 , DOT4ESP, DOT5, DOT5.1, DOT5.1ESP, ENV4, ENV6Wet Boiling Point Range140-205°C / 284-401°F ±5%Dry Boiling Point Range160-320°C / 320-608°FTemperature Measurement Range0-320°C / 0-608°F Power And OperationWorking Voltage12V, minimum 10VWorking Temperature Range0-50°CDisplayOLED displayControlsTAB key and START / S keyProtectionBattery polarity reverse protection Size And PackageMain Unit DimensionsØ88 × 146mm / Ø3.46 × 5.75inPackage Weight0.6kgWarranty3 years for eligible non-human damage cases; lifetime maintenance support Reference ValuesReference ValuesBrake Fluid Boiling Point Reference ValuesDOT3: dry 205°C / 401°F; wet 140°C / 284°F.DOT4: dry 230°C / 446°F; wet 155°C / 311°F.DOT4 : dry 230°C / 446°F; wet 155°C / 311°F.DOT5: dry 260°C / 500°F; wet 180°C / 356°F.DOT5.1: dry 270°C / 518°F; wet 190°C / 374°F. Click to enlargeMaintenance And CareMaintenance And CareBrake fluid is corrosive. Clean the test stick after testing and use the water boiling point check for a quick initial diagnosis if the tester has not been used for a long time.Clean After TestingAfter the brake fluid test, empty the brake fluid and fill about 50ml of water to test and clean residual brake fluid from the test stick.Long-Term StorageIf the tester is not used for a long time, detect with water so residual corrosive brake fluid can be removed from the test stick, then let the heating stick dry at room temperature.Quick Calibration CheckFill the beaker with water and check whether the boiling point reads around 100°C / 212°F ±3%. For stricter calibration, return the unit to the factory for retesting and calibration. Click to enlargeWhat Is In The BoxWhat Is In The BoxThe packing list image shows the AS506 main tester, carrying case, beakers, injection sampler, hose, user manual, and retail box. Use the final package image as the accessory reference before ordering.Main UnitAUTOOL AS506 brake fluid boiling point tester with power clampsStorage CaseProtective carrying case shown in the package imageBeakersBrake fluid sample beakers with 50ml scale referenceSampling ToolsInjection sampler and hose shown in the package imageDocumentationAUTOOL AS506 user manualRetail BoxAUTOOL AS506 product box and accessories shown in the package imageProduct ComparisonProduct ComparisonCompare the AS series before choosing. AS506 is different from water-content brake fluid testers and transmittance-based oil testers because it focuses on brake fluid boiling point detection.AS501 / AS502Brake fluid testers focused on brake fluid water content detection.AS503Engine oil quality tester using optical probe technology for engine oil transmittance.AS505Transmission fluid tester using optical probe technology for transmission fluid transmittance.AS506Brake fluid boiling point tester using flash point heating technology, 12V power, Normal / Brand Mode, 16-second response, and 9 supported brake fluid types.AS507Power steering fluid tester using optical probe technology for steering fluid transmittance.Decision CheckChoose by the fluid being tested, detection technology, power supply, test duration, mode selection, cable length, and whether boiling point reference values are required. Click to enlargeRelated ProductsRelated ProductsCompare related AUTOOL fluid analyzers before choosing a brake fluid tester, engine oil tester, transmission fluid tester, brake fluid boiling point tester, or power steering fluid tester. SALESelect options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Oil Analysis TesterAUTOOL AS502 Car Brake Fluid Tester For Water Content TestingRated 0 out of 5(0) From US$30.00 Select options This product has multiple variants. The options may be chosen on the product page SALESelect options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Oil Analysis TesterAUTOOL AS503 Engine Oil Tester with Digital DisplayRated 0 out of 5(0) From US$39.00 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 Add to wishlist Add to compare Quick view iconQuick view Oil Analysis TesterAUTOOL AS505 Exchanger Transmission Oil Tester with DisplayRated 0 out of 5(0) From US$49.00 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 Add to wishlist Add to compare Quick view iconQuick view Oil Analysis TesterAUTOOL AS506 Automobile Brake Fluid TesterRated 0 out of 5(0) From US$72.00 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 Add to wishlist Add to compare Quick view iconQuick view Oil Analysis TesterAUTOOL AS507 Power Steering Fluid Tester High Precision probeRated 0 out of 5(0) From US$30.00 Select options This product has multiple variants. The options may be chosen on the product page Manual And DownloadsManual And DownloadsDownload the AS506 user manual for brake fluid testing, 12V power connection, sampling, detection operation, safety warnings, maintenance, calibration, warranty, and return guidance. Click to enlargeAUTOOL AS506 User ManualOpen the PDF manual for operation guidance, safety precautions, brake fluid reference values, brand mode information, maintenance, and calibration instructions. Download ManualNeed Setup Confirmation?Contact AUTOOL Store before ordering if you need to confirm brake fluid compatibility, sample volume, 12V battery power, package contents, calibration, warranty, or AS series model selection.Email[email protected] WhatsApp 86 189 2647 7404Questions And AnswersThese answers cover boiling point testing, supported brake fluid types, Normal Mode, Brand Mode, sample volume, 12V power, safety, maintenance, calibration, AS series model differences, and warranty support. What Does AUTOOL AS506 Test? AS506 tests the boiling point performance of automotive brake fluid. The result helps users judge whether brake fluid should be replaced. It is positioned as a brake fluid boiling point tester rather than a simple water-content tester. Which Brake Fluid Types Does AS506 Support? AS506 supports DOT3, DOT4, DOT4 , DOT4ESP, DOT5, DOT5.1, DOT5.1ESP, ENV4, and ENV6 brake fluid types. What Is The Difference Between Normal Mode And Brand Mode? Normal Mode lets you select the brake fluid type directly. Brand Mode lets you select from built-in brand references including ATE, TRW, BOSCH, MOBIL, TOTAL, FUCHS, MOTUL, DELPHI, KUNLUN, FERODO, BREMBO, TEXTAR, MONARCH, and CHANGCHENG, then choose the matching brake fluid type. How Much Brake Fluid Should I Use For One Test? Use the injection sampler to fill the beaker with brake fluid above the 40ml scale and not more than 50ml. Do not test with insufficient liquid, because empty boiling may damage the test stick. What Power Supply Does AS506 Need? Use 12V vehicle battery power. The working voltage is 12V and the minimum voltage is 10V. Connect the red clamp to battery positive and the black clamp to battery negative. Do not describe the unit as a 24V tester unless an updated official manual confirms that specification. How Long Does One Detection Take? After selecting the correct mode and brake fluid type, press and hold the S button for about 16 seconds. Wait for the progress bar to complete, then read the test result on the OLED screen. Can I Pour Tested Brake Fluid Back Into The Reservoir? No. Do not pour the tested brake fluid back into the brake fluid reservoir. The sample has been boiled and its structure has changed, which may affect driving safety. How Should I Clean Or Maintain The Test Stick? After testing, empty the brake fluid and fill about 50ml of water to clean residual brake fluid from the test stick. If the tester will not be used for a long time, use water to dilute and remove residual brake fluid, then let the heating stick dry at room temperature. How Can I Check Whether AS506 Needs Calibration? Fill the beaker with water and test whether the boiling point reads around 100°C / 212°F ±3%. This is only a quick initial diagnosis. If stricter standards are required, the unit must be returned to the factory for retesting and calibration. How Is AS506 Different From AS501, AS502, AS503, AS505, And AS507? AS501 and AS502 focus on brake fluid water content. AS503 tests engine oil quality by transmittance. AS505 tests transmission fluid by transmittance. AS506 tests brake fluid boiling point using flash point heating technology. AS507 tests power steering fluid by transmittance. What Accessories Are Included? Refer to the Packing List image for final package contents. The package image shows the AS506 main tester, carrying case, beakers, injection sampler, hose, user manual, and retail box. How Long Is The Warranty? AUTOOL provides 3-year warranty support for eligible non-human damage cases and lifetime maintenance support guidance. For product setup, model selection, accessory confirmation, or troubleshooting, contact AUTOOL Store support.Warranty And ContactWarranty And ContactFor AS506 brake fluid compatibility, 12V power setup, sample volume, test result interpretation, package contents, maintenance, calibration, AS series model comparison, warranty, or troubleshooting, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help confirming whether AS506 is the right brake fluid tester for your workshop, how to test a specific brake fluid type, how to use Normal Mode or Brand Mode, or how AS506 compares with AS501, AS502, AS503, AS505, and AS507.3-year warranty support for eligible non-human damage casesLifetime maintenance guidanceBrake fluid type and brand reference confirmation12V battery connection and operation supportPacking List and accessory confirmationMaintenance, water check, calibration, and troubleshooting guidanceAS501 / AS502 / AS503 / AS505 / AS506 / AS507 model selection supportCustomer support response as soon as possible, usually within 24 hoursEmail Support[email protected] WhatsApp Support 86 189 2647 7404