Ametek 129670 Pt100 Probe, -58 to 392°F ( -40 to +150°C) with NIST Calibration. The 129670 is a stainless steel, 200mm long Pt100 RTD Probe capable of reading temperatures between -40 to 150°C. It features a male LEMO 6 pole connector used by various devices including the Crystal HPC40 Series Calibrators & the nVision RTD100 Temperature Module. The probe has a coiled cable length of 3 metres when fully extended.