I am trying to set up a routine to alarm when freeze is above temperature, however, I am unable to enter a minus sign.
There is a minus sign on the numberpad but it always enters a decinam point.
Can anyone suggest a solution?
Copy and paste
Test that, if not there is one more option to try 
Press the .- button twice
That did it @jkp thanks.
Should have thought of that!
Well, @BlackRose67, I thought I had tried that.
But I see that it does work.
Must be getting too old for this. 