Thermistor Code

Hi,

I bought this sensor "Arduino Temperature Sensor Module for Sensor Shield " form ebay, and I try to used this sensor with Arduino Pro ATmega328. I download the code form arduino web side . But I have a problem.
The problem is when I open the Serial Monitor I get different symbols like these;

b¥b¥b¦b¦b¦b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134][ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]b[ch134]bÅbÅb[ch134]bÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅbÅb¥bÅb¥b¥b¥b¥b¥b¥b¥b¥b¥b¥b¥

How I can change these to numbers?