The PIE 525B Thermocouple & RTD Calibrator is designed specifically for the process industry with broad workload coverage, calibration power and unsurpassed accuracy in mind. The 525B measures and simulates almost all temperature based inputs with simultaneous mV or resistance and corresponding temperature display using the selected coefficient. Features include the ability to store and recall any 3 temperature points instantly, auto stepping with adjustable step times, auto ramping, and a sensor diagnosis system to detect corrosion or broken wires.