The UT351 Digital Indicating Controller (1/4 DIN size) is a compact, versatile, general-purpose instrument that comes with Active Color PV Display function, which changes LED color of large display between Green-color and Red-color automatically based on a PV deviation or Alarm status. UT351 also provides an easy-to-see large display for readings, along with an AUTO/MAN switching key, offering excellent monitoring and operability. Control functions include optional heating/cooling control, as well as autotuning, PID control with the "SUPER" overshoot suppress function and additionally new "SUPER2" hunting suppress function. Retransmission output and sensor power supply (15 V DC) come as standard.