The salt test

[Deke]

very top of face I have red button

Immediately on left bottom small button never seen until just now. Adjustable button turns left and right on right side of face.

Guess I need to know what the two button are for on bottom. Thanks.

The red button changes from Celsius to Fahrenheit.

Turn button on lower right one click clockwise is 1% higher (your salt test is at 74%) or counterclockwise is 1% lower. Then immediately push button on left with pen and hold until.display changes. That saves change.