B + B Thermo-Technik 0555 0251 0555 0251 Temperature sensor -55 up to +125 °C

0.07 ºC resolution, accurate to 0.3 ºC at 20 ºC; Automatic configuration, calibration function; Powerful graphics software for Windows®98/NT/2000/XP; Three-wire parallel connection of sensors

Price: 109.99 from Conrad Electronic