PT503 Manometer Gas Pressure Tester,Dual-Port HVAC Digital Manometer with Range of -100 to 200 KPa, 6 Units, Data Retention, 7Adapters, — Open-Box, 20% Off

【High-Precision Manometer】 This digital Manometer is equipped with dual input ports, enabling gas differential pressure detection and measurement. Measurement Range: -14.5 to 29.01 psi / -100 to 200 kPa Accuracy: ±0.5% FSO (at 25°C) Linearity/Hysteresis: ±0.1% FSO Maximum Pressure Limit: 30 psi

【Positive/Negative/Differential Pressure Measurement & Multiple Selectable Units】 This gas pressure gauge adopts a dual-port design with two high-sensitivity probes, enabling positive and negative pressure measurement. With this digital manometer, you can quickly detect the real-time pressure value of a single pipe (relative to the current atmospheric pressure) or measure the differential pressure between two pipes. It covers psi (pounds per square inch), inHg (inches of mercury), kPa (kilopascals), mbar (millibars), bar, and mmHg (millimeters of mercury), meeting the measurement needs of different industries.

【Data Hold & Pressure Calibration】 This manometer gas pressure tester supports data locking, storage, and calibration functions. It can lock the measurement result screen and store measured pressure data for users to record and analyze. Additionally, the gauge automatically calibrates to the same pressure value as atmospheric pressure upon power-on, eliminating the need for manual calibration. (Note: Do not power on the gauge under pressure, as this will affect measurement results.).

【Wide Applications】 The PT503 manometer has a much wider range than most differential pressure gauges on the market, with richer applicable scenarios including but not limited to: ventilation system testing, gas pressure system calibration and troubleshooting, HVAC system commissioning, gas appliance installation and maintenance, tankless water heater debugging, electric valve air pressure setting, household boiler air pressure maintenance testing, bathroom exhaust fan air volume measurement, and negative pressure testing such as intake manifold vacuum, brake booster, crankcase and exhaust valve.

【Practical Design】 1.8-inch backlit display for clear reading in strong or dim light; auto-shuts down after 5 minutes of no pressure/operation to save power, plus a low-battery reminder function.

【Worry-Free After-Sales Service】 Package List: 1 digital manometer, 2 16-inch rubber hoses, 1 39-inch rubber hose, 7 adapter connectors, 1 user manual, 2 1.5V batteries, and 1 storage case. We offer free product replacement or other solutions for defective gauges during use, ensuring customer satisfaction.

PT503 Digital Manometer Gas Pressure Tester – Precision Tool for HVAC, Automotive & Home Maintenance Tired of inconsistent pressure readings that derail your repairs or calibrations? The PT503 Digital Manometer Gas Pressure Tester is engineered to solve this, blending accuracy, portability, and user-friendliness for both professionals and DIY enthusiasts. Whether you’re a HVAC technician debugging ventilation systems, an auto mechanic testing brake boosters, or a homeowner checking bathroom exhaust fan airflow, this digital manometer delivers reliable results every time. High Accuracy for Trustworthy Readings This manometer gas pressure tester boasts a measurement range of -14.5 to 29.01 psi (-100 to 200 kPa) – perfect for most everyday pressure-related tasks. With an accuracy of ±0.5% FSO (at 25°C) and linearity/hysteresis of ±0.1% FSO, it captures even subtle pressure fluctuations, ensuring you never miss critical details. It supports 6 widely used pressure units (PSI, inHg, kPa, mbar, bar, mmHg) – no more manual conversions, just quick toggling to match your project’s needs, whether you’re setting gas pressure on electric valves or maintaining domestic boilers. User-Friendly Design for Effortless Use The PT503 is built with real-world use in mind: its 1.8-inch backlit LCD display ensures clear visibility in bright sunlight or dim garages, while a one-touch data hold function locks readings to prevent accidental changes. Power it on, and it auto-calibrates to atmospheric pressure – no complicated manual setup required (just remember: never power on under pressure, as this affects accuracy!). To save battery life, it auto-shuts off after 5 minutes of inactivity. The compact design fits easily in toolboxes, and the included 1m silicone tubing, 7 adapters, and 2 AAA batteries let you start measuring right out of the box. Versatile Applications for Every Need This digital manometer isn’t limited to one task – it excels across scenarios: HVAC: Test air/ventilation systems, calibrate gas pressure units, or debug ductwork. Automotive: Check intake manifold vacuum, brake booster pressure, or crankcase negative pressure. Home & Small Projects: Maintain tankless water heaters, measure bathroom fan airflow, or install gas appliances. Worry-Free After-Sales Guarantee We stand behind the PT503’s quality. If you encounter any defects during use, we’ll provide a free replacement or tailored solution until you’re satisfied. Plus, our team offers responsive support – reach out anytime, and we’ll get back to you within 24 hours. For a reliable, easy-to-use manometer that meets all your pressure-measuring needs, the PT503 is the choice you can trust.