We supply electronic monitoring and control device (PLC Allen Bradley or Siemens) for reciprocating and screw compressors, and chillers. The control provides on-line information on all relevant conditions, e.g. pressures, temperatures, hours of operation, % of capacity, safety control, alarm history file. Automatic start-up, shutdown and capacity control routines are implemented. The control can be mounted directly on compressor units or in remote control room.