The Blodgett 56873 Temperature Probe 1K 3/16" term "RTD" is to provide highly accurate temperature measurement in demanding commercial cooking environments. This resistance temperature detector (RTD) utilizes a 1K-ohm sensing element that changes electrical resistance in direct proportion to temperature fluctuations, enabling reliable signal transmission to compatible control systems.... https://partsfe.com/56873-blodgett-probe-1k-rtd-316-term