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AUTOOL PT503 Mini differential pressure gauge utilizes a pressure sensor instead of traditional dial-based pressure measurement. It features fast response times, measurement accuracy of ±0.5% FS, and resolution down to 0.01 psi. This device directly measures differential pressure to verify sensor signal authenticity while simultaneously detecting positive and negative pressures between two locations and automatically calculating the differential pressure. It is suitable for applications such as testing exhaust valve crankcase pressure, intake manifold vacuum, and ventilation/air conditioning system pressure.
WHAT TO CHOOSE AUTOOL PT503 Mini Differential Pressure Gauge
🛑 Traditional dial gauges suffer from unstable readings, inability to distinguish actual sensor differential pressure, significant inaccuracies, single pressure value display, and bulky size that hinders operation.
AUTOOL PT503 offers easy-to-read data with ±0.5%FS accuracy and 0.01 psi resolution. It features multiple unit conversion (psi, inHg, kPa, mbar, bar, mmHg) and a compact design for portability across various repair scenarios (e.g., roadside assistance, multi-station workshop use).
✅ Engine Repair Applications: Checks intake manifold vacuum to assess valve seal integrity or throttle position. Measures crankcase pressure to diagnose PCV valve malfunctions.
✅ Fuel System Inspection: Rapidly locates fuel line leaks via differential pressure changes, reducing manual data recording errors and boosting repair efficiency.
✅ HVAC & Ventilation Systems: Verifies air conditioning system pressure balance to optimize cooling efficiency; validates ductwork seals to ensure cabin air quality.
High-Precision Sensor
Themeasurement response is rapid, with an accuracy of ±0.5% FS, precisely capturing even the samllest pressure changes. Multiple Application Scenarios
It accurately covers pressure testing for key systems such as intake, brake, exhaust, and crankshaft, fully meeting the diagnostic needs of automotive maintenance. Portable Design
Mini and compact, easy to operate, suitable for on-site testing and mobile use Data Holding Function
One-click precise holding keeps data stable, preventing data changes due to accidental touches or environmental interference Various Measurement Adapters
Equipped with measurement adapters of different specifications, suitable for various diameter pipelines. Product SpecificationsMeasurement Ranges -101Кра-200КраResolution 0.01psi.O.OlinHg. O.1Kpa. Imbar, 0.001bar, ImmHgPackaging Details
1pc* AUTOOL PT503 Differential Pressure Gauge Main Unit
7pcs* Adapter
2pcs* Short Hose
1pc* Long Hose
1pc* User\'s ManualMORE PRODUCTSMORE PRODUCTSMORE PRODUCTS MORE PRODUCTS 3 YEARS WARRANTY MORE PRODUCTS MORE PRODUCTS MORE PRODUCTS MORE PRODUCTS 3 YEARS WARRANTY