Liquid Temperature bath manufacturer “SANSEL” series TCAL 1501 / 250 is a micro controller based precision “Liquid temperature calibrator” generates true reference temperature. The temperature controller of the calibrators uses a auto tune FUZZY PID controller algorithm. This response closely follows the heating curve of an actual thermal system. Place the Thermometers, Thermocouples & RTDs to be calibrated in the calibrator. Set the temperature from the 4.3 inch true TFT display with touch screen. Both Block and set temperature can be read. When stabilization occurs, Simply read the temperature and re-calibrate the Thermometer, sensor etc, . or comparison with master RTDs reading