Ranco 4 Stage Digital Controller with Alarm, Cyclical Timer, Serial Communication and Soak Function(115/230v)

It has four configurable outputs: cooling, heating, minimum ventilation, and alarm and timer (cyclic timer). It has an internal audible alarm (buzzer), a configurable digital filter, and accept three types of sensors: NTC thermistor (- 50 to 105°C) e PT100 (- 99 to 300°C). MT-543E plus allows the use of stage 1 in soak mode and the configuration of up to five different setpoints and the time each setpoint will remain active.