Review on 📏 AR1890 Prime Professional Differential Manometer - Unbeatable Precision for Ultimate Accuracy by Adam Taylor

This worked very well for me and the price couldn't be better. I have a couple of static pressure sensors and use them to gauge my oven even when the filter needs to be replaced. I also ordered a used Pitot tube from E-Bay and can now measure flow. Please note that this device is differential (you can use single-ended). Some of the more expensive ones are actually two separate sensors, so it's possible to get two unbalanced readings at the same time, as well as the difference between them. But the lack of it is a minor inconvenience. The range is suitable for use in HVAC systems.