CALIBRATION ADJUSTMENT OF REMOTE READING THERMOMETER The thermometer has been calibrated at 300°F. If this thermometer has to be re-calibrated for any reason, proceed as follows: 1. Pry off the chrome ring and glass from the front of the thermometer. 2. Place small screwdriver in screw slot on the center shaft, but do not turn as this might harm the internal mechanism. 3. The indicator hand may now be turned to suit with your finger. 4. Replace the chrome ring and glass.