Thanks for the reply. It is a lot better but I measure the voltage into porta.3 as .67 but the display says .72. I have checked it up and down and it's linear but the PIC isn't displaying the correct voltage. Is there any better method to measuring an analog voltage? I was thinking of using an ADC0831 but I wanted to stay away from adding more chips. Maybe a current loop temp senor? In my project, I wanted to have data like 72.3, 72.4 instead of just 72 or 73. Are there any sensors that will display three digits to have better clarity?