The factory specification for calibration variance should be within +/- 3-5 degrees accuracy.  If you feel your "GA" Series thermometer is not within the specification, please contact Formotion at This e-mail address is being protected from spam bots, you need JavaScript enabled to view it  for instructions.

DO NOT ATTEMPT TO OPEN THE BACK COVER OF YOUR THERMOMETER, IT IS LIQUID FILLED AND YOU WILL COMPROMISE THE FLUID IF OPENNED.

While we have a special process during manufacturing that virtually eliminates any air bubbles in our thermometers, some small air bubbles may exist or develop over time; this is normal and in no way affects the thermometer.