Sencore CR70 Help

[Polaraligned]

I did not get a full instruction manual with it, just the quick set-up guide. Problem is that when I am set to read emissions, the cutoff set knob seems to have a dramatic effect on the reading of the emissions. I am guessing that this is not ok, unless the cutoff set knob is supposed to be in a certain position before checking emissions. I don't know for sure without a full manual.



Thanks,

Scott