Is anybody knows the accuracy of these devices? OK, each says around 1-2 Celsius, however, I am not sure if that is true for all type of surfaces? Also how the accuracy affected by wind, humidity and vibration? Thanks, Tamas -- unPIC -- The PIC Disassembler http://unpic.sourceforge.net -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist