AK-LM 330 is a versatile monitoring unit for monitoring of temperatures, pressures, voltage signals, on/off alarm signals and utility consumption in and around appliance cases and cold rooms for commercial and industrial cooling, with the option of regulation functions via relay switches. The monitoring unit is equipped with data communication and is operated via a PC and Service Tool AK-ST 500. 10 General thermostat functions. 5 General pressostat functions. 5 General purpose voltage inputs. 16 General purpose digital alarm inputs. 4 utility meter functions that can be used for monitoring of utility consumption (electrical power, water, gas). Alarm relays and alarm handling. 4 display connections for readout of measurement values.