Manometer, HVAC Digital Manometer Gas Pressure Tester, Handheld Air Pressure Meter, 11 Optional Units Differential Pressure Gauge YF-189B with Backlight, Data Hold Function… auspowers_batchone Size: 8" x 2 1/2"

Size: 8" x 2 1/2"

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Manometer, HVAC Digital Manometer Gas Pressure Tester, Handheld Air Pressure Meter, 11 Optional Units Differential Pressure Gauge YF-189B with Backlight, Data Hold Function… auspowers_batchone Size: 8" x 2 1/2"Manometer, HVAC Digital Manometer Gas Pressure Tester, Handheld Air Pressure Meter, 11 Optional Units Differential Pressure Gauge YF 189B with Backlight, Data Hold Function The gas tester can measure the air pressure of a single pipe or the differential pressure of two pipes. It is suitable for measuring ventilation and air condition systems? gas measurement, calibration, and troubleshooting of any gas pressure systems. Feature: 1. Multifunctional, it