Difficult to understand some readings

Just bought my second one. Works great.

I received this instrument approx. 1 month ago and it works great

Got it Sweeney ago and installed it on our RB, works great but

On the second one after returning the first one!Going to return this one too,JUNK

Need more written instructions & explanations

Not as good as my prior one.

its works ok but can't get all readings to show

The unit doesn't work. We try to reset it daily. It'll work for about 5 minutes and then doesn't. We've had it for 4 months. It was a total waste of money.

Nice features but it stops working a couple months after the warranty ended.