Refractometer calibration ?

[billy2k1]

I just got a refractometer and reading the instructions i noticed that my room temp. according to this should be 68 deg.F. to calibrate it.Does that means that my AC has to lower my actual temp in my apartment that low just to calibrate this thing?My actual room temp is 77 deg.

 

[bang guy]

That would be the most accurate. In most cases room temp is accurate enough.

 

[billy2k1]

Thanks a lot.I already try it and i am in love with it.This is great....I was off using my hydrometer....