Review on 📏 UEi Test Instruments EM201B Differential: Accurate Measurement Device for Differential Testing by James Roper

I bought these so I can check and adjust the gas pressure in my oven. The air coming out of the vents was cold when the heater was turned on and I knew that could be the problem. a year ago) was set too low. I have checked and adjusted the manufacturer's information. Did. The manometer is very well made and worked great for me. Just a warning; If you don't know how to do it, always ask a professional, it shouldn't be done by anyone. I have experience with air conditioning and heating so I did it myself.