Efficient and space-saving temperature measurement The TSP is a universal purpose platinum insertion thermometer for the temperature measurement in liquids and gases. It can be adapted to specific applications through its available connection threads and insertion lengths. Wetted parts are made from stainless steel 1.4305. The platinum resistor (Pt100 or Pt1000, accuracy class B according to IEC 60751) is located inside the tip of the probe. It is electrically connected by an M12 x 1 circular connector. Therefore, the device is compact and well suited for narrow installation spaces.