Mifa systems provides digital temperature controllers [series ttm-00], with various functions, easy-to-use and multiple inputs. Most appropriate pid constant is automatically reckoned up for control objects. The pid constant is calculated when making alteration of setting value, or is corrected when occurring disturbance or hunting, etc. On/off setting control is available after certain interval. Function of on/off alarm output is independently usable. Demanding parameter screens are monitored and set up under operational mode screen. Thermocouple/rtds are selectable by front key. Manual output function is applicable for versatile applications of instrumentation systems. The communication distance is extended up to 500 metres. Maximum 31 units of computers can be connected at a time. Centralised supervision is available for collection of the whole data and alteration of setting values at remote location. For abrupt alteration of input value, filter effect is operational on software.