The PTC 400 Precision Temperature Calibrator is an ideal device to handle all of your temperature calibration needs in a truly rugged,low-cost package.It combines virtually all widely used thermocouples and RTDs in one device — you ’ll never have to worry about finding a temperature device you can ’t calibrate. This is especially true when calibrating "smart ” or pulsed RTD transmitters,where many other calibrators fail to work or operate at reduced accuracy specs.The PTC 400 handles those applications with ease.