"First off I opened the box and the unit is huge. Probably about an 8" cube. Good thing I was installing it with black pipe so it wasn't really an issue. I installed it and went to calibrate it as per the instructions and the closest I could get it was about 20% off!!! Why bother having a meter if the best you could do is 20% off? Back in the box it goes. Maybe next time."
What is your level of technical expertise? Home Handyman