Locate the adjustment nut at the top of the thermometer stem. Use the Calibration Tool to simply adjust the needle position so that it is showing the correct temperature. Hold onto the dial/face, lock the spanner onto the recalibration nut at the rear of the dial. for temperature increase turn the recalibration nut in a clockwise direction and do the opposite for decreasing the temperature.
Why do we love Rhino Thermometer Calibration Tool
Easy to use
Dimensions: 88mm (L) x 4mm (D) x 21mm (W)
Wrench Size: 13mm suits Rhino Tall and Short Analogue Thermometers.