PerfectPrime AR1890P2, Digital Air Pressure Manometer to Measure Gauge & Differential Pressure ±13.79kPa / ±2 psi / ±55.4 H2O with pair of 304 Stainless Steel Static Tube 5.13" x 2.34" Length

PerfectPrime AR1890P2, Digital Air Pressure Manometer to Measure Gauge & Differential Pressure ±13.79kPa / ±2 psi / ±55.4 H2O with pair of 304 Stainless Steel Static Tube 5.13" x 2.34" Length

comments:

James-the-Bond-one posted on r/hvacadvice1w

Yes, you would need a hugely expensive $50 manometer that no YouTube video will tell you how to use, due to trade sanctions (the HVAC trade sanctions).