The AccuMac AM1730 secondary reference PRT features an accuracy of ±0.015°C at 0.01°C and a short term stability of ±0.007°C. The sensing element is designed to protect the platinum sensing wire from contamination at high temperatures, giving the device a high level of stability and repeatability. A uniquely designed support structure and filling material provides an excellent balance between the hysteresis effect, mechanical shock, and thermal shock performance.