Do you have the model # cause there are lot and lot of different Hanna pocket pH meters?
"Simple pH Indicator Solution: A simple way to prepare a pH indicator, instead of using pH strips, is to use the spice, Turmeric. Turmeric is a yellow powder but in a basic solution it turns a ruby red color. Actually, it turns color right at a pH of 6.8. the pH that the urine and saliva should be, most of the time.
To prepare this pH indicator solution you just add a teaspoon of Turmeric to a pint of rubbing alcohol. Shake it up and let it settle.
To use it pour some of the yellow, alcohol/Turmeric solution into a test tube or similar container. A small drinking glass will do. Add a few drops of urine or saliva and if it turns red it means that whatever was added had a pH greater than 6.8, that it was alkaline. If it stays yellow the pH is acid, less than 6.8, need more fruits and vegetables. If your urine is acid you need Base Powder. You take enough Base Powder so that the Turmeric solution stays red most of the time. After awhile it will stay red all by itself and then you will know what it means to be in pH balance. You will simply just feel good.