AUTOOL PT502 Vaccum Pressure Gauge

AUTOOL PT502Product OverviewThe AUTOOL PT502 is a digital vacuum pressure gauge designed for automotive negative-pressure diagnosis. With a measurement range of -101kPa to 0kPa and ±1%FS accuracy, it helps technicians measure vacuum pressure in key systems such as the engine intake manifold, crankcase, EGR / exhaust valve, exhaust system, turbocharger vacuum line, and A/C ventilation system. By monitoring pressure data, PT502 helps locate engine sealing problems, pipeline leaks, system blockages, and concealed vacuum-related faults more efficiently.-101–0kPa ±1%FS 12V Vehicle Power Negative Pressure OnlyDC 10–14VPower Supply<35mAWorking Current-10°C–60°CWorking Temp3 YearsWarranty Click to enlargeKey FeaturesKey FeaturesPT502 combines a high-precision pressure sensor, smart temperature compensation, direct vehicle power, and reverse polarity protection for reliable vacuum-pressure diagnosis in automotive repair work.High-Precision SensorThe built-in high-precision pressure sensor quickly captures pressure changes and provides real-time measurement results across the -101kPa to 0kPa working range with ±1%FS accuracy.Smart Temperature CompensationThe built-in temperature sensor monitors ambient temperature changes and automatically corrects measurement deviations, improving stability in -10°C to 60°C environments.Direct Vehicle Power SupplyPT502 connects directly to the vehicle’s 12V power supply, providing worry-free power for continuous diagnosis without a separate internal battery.Reverse Polarity ProtectionIf the positive and negative terminals are connected incorrectly, reverse polarity protection automatically cuts off current to help safeguard the gauge and vehicle battery.Vacuum Fault DiagnosisPressure data helps identify sealing issues, pipeline leak points, system blockages, and hidden vacuum faults in multiple automotive systems.Three-Year WarrantyFor eligible non-human damage cases, AUTOOL provides 3-year warranty support and long-term maintenance assistance. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeApplicationsApplicationsUse PT502 for negative-pressure diagnosis in key automotive systems where vacuum data helps reveal leaks, blockage, sealing failure, or abnormal pressure behavior.Intake ManifoldCheck intake manifold vacuum conditions during engine diagnosis.Brake Pump / Brake BoosterAssist vacuum-related checks around brake assistance systems.Exhaust PipeSupport exhaust-system vacuum-related fault inspection.Exhaust Valve / EGR ValveHelp diagnose valve-related vacuum pressure abnormalities.CrankcaseMeasure crankcase ventilation vacuum for hidden fault diagnosis.Gas Pipeline / Vacuum HoseLocate pipeline leak points, sealing problems, and blockage symptoms.A/C Ventilation SystemAssist ventilation-system vacuum checks where negative pressure measurement is required.SpecificationsPT502 SpecificationsConfirm the measurement range, accuracy, voltage, current, temperature range, cable length, and negative-pressure-only limitation before use.MeasurementProductAUTOOL PT502 Vacuum Pressure GaugePressure TypeNegative pressure onlyPressure Measurement-101kPa to 0kPaAccuracy±1%FSMeasurement UnitkPaPower And EnvironmentOperating VoltageDC 10V–14VOperating Current<35mAOperating Temperature-10°C to 60°CPower SupplyDirect vehicle power supplyProtectionReverse polarity protectionCable And SizeMain Cable Length1.5mProbe / Hose Length0.4mBody Size Reference102mm × 48mmSupport3-year warranty for eligible non-human damage cases Click to enlarge MeasurementProductAUTOOL PT502 Vacuum Pressure GaugePressure TypeNegative pressure onlyPressure Measurement-101kPa to 0kPaAccuracy±1%FSMeasurement UnitkPa Power And EnvironmentOperating VoltageDC 10V–14VOperating Current<35mAOperating Temperature-10°C to 60°CPower SupplyDirect vehicle power supplyProtectionReverse polarity protection Cable And SizeMain Cable Length1.5mProbe / Hose Length0.4mBody Size Reference102mm × 48mmSupport3-year warranty for eligible non-human damage cases Before You Order And UseBefore You Order And UsePT502 is a negative-pressure-only diagnostic gauge. Review the zeroing and pressure-use limitations before testing.Negative Pressure OnlyPT502 only supports negative pressure / vacuum pressure measurement. Do not use it for positive pressure testing.Do Not Power On Under PressureDo not turn on the vacuum pressure gauge while pressure is already applied. Powering on under pressure may affect zeroing and measurement accuracy.Connect 12V Power CorrectlyConnect the clamps correctly to the vehicle DC 10V–14V power supply. Reverse polarity protection helps protect the device, but correct connection is still required.Confirm The Target SystemBefore testing, confirm that the target system is a vacuum / negative pressure system and that PT502’s -101kPa to 0kPa range is suitable.Manual And DownloadsManual And DownloadsDownload the PT502 manual for setup, 12V power connection, negative pressure measurement, zeroing notes, and safe-use instructions. Click to enlargeAUTOOL PT502 Manual EN-DEOpen the PDF manual for PT502 connection, measurement, and safe-use guidance. Download ManualNeed Setup Confirmation?Contact AUTOOL Store before ordering if you need help confirming the manual version, setup steps, compatibility, accessories, safe-use notes, or after-sales support for this product.Email[email protected] WhatsApp 86 189 2647 7404Related ProductsRelated ProductsCompare related AUTOOL pressure testing tools before choosing the right gauge for vacuum pressure, differential pressure, brake pressure, oil pressure, or cylinder pressure diagnosis. 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 Engine Pressure TesterAUTOOL PT530 Digital Manometer Dual Port Pressure GaugeRated 0 out of 5(0) From US$136.00 Select options This product has multiple variants. 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The options may be chosen on the product page Click to enlargeWhat Is In The BoxWhat Is In The BoxReview the package image to confirm the PT502 gauge, power connection, pressure interface, packaging, and manual before ordering.Main UnitAUTOOL PT502 Vacuum Pressure GaugePower ClampsVehicle battery clamp power cablePressure InterfaceVacuum pressure measurement probe / interface shown in the package imagePackagingProduct box shown in the package imageDocumentationPT502 user manual shown in the package imageQuestions And AnswersThese answers cover negative-pressure-only use, measurement range, power-on precautions, applications, 12V power, reverse polarity protection, accuracy, and temperature compensation. Can PT502 Measure Positive Pressure? No. PT502 only supports negative pressure / vacuum pressure measurement. Do not use it for positive pressure testing. What Is The Measurement Range Of PT502? PT502 measures vacuum pressure from -101kPa to 0kPa. Why Should I Not Power On The Gauge Under Pressure? Powering on while pressure is already applied may affect zeroing and cause inaccurate measurement results. Power on the gauge before applying vacuum pressure. What Systems Can PT502 Test? PT502 can be used for vacuum-related diagnosis in the intake manifold, crankcase, EGR / exhaust valve, exhaust pipe, gas pipeline, turbocharger vacuum line, and A/C ventilation system. How Is PT502 Powered? PT502 connects directly to the vehicle DC 10V–14V power supply using the battery clamps. Does PT502 Have Reverse Polarity Protection? Yes. PT502 has reverse polarity protection that cuts off current when the positive and negative terminals are connected incorrectly. What Is The Accuracy Of PT502? The measurement accuracy is ±1%FS across the working range. Does PT502 Support Temperature Compensation? Yes. PT502 has a built-in temperature sensor and smart temperature compensation to reduce measurement deviation caused by ambient temperature changes.Warranty And ContactWarranty And ContactFor PT502 product support, application confirmation, manual requests, negative-pressure-only confirmation, measurement accuracy, zeroing support, power clamp connection, or reverse polarity protection questions, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help confirming whether PT502 is suitable for your vacuum-pressure test scenario, whether your target system is negative pressure, how to connect DC 10V–14V power, or how to avoid power-on-under-pressure measurement issues.3-year warranty for eligible non-human damage casesNegative pressure measurement confirmationApplication confirmation before purchaseManual and setup supportMeasurement accuracy and zeroing supportPower clamp and reverse polarity supportEmail Support[email protected] WhatsApp Support 86 189 2647 7404