I soaked m probe in RO/DI water overnoght as suggested and just set up the probe in my tank. First, I checked the temp with a good old "normal" thermometer and pH with my digital that was just calibrated last night. The readings came out wonderfully! And I can see the display easily. Now I wish I wouls have bought one for each tank....

So, for those that I picked up for, ummmm... They got lost. Sorry. :P