The EGE SKM 420 GR is a compact and reliable flow controller amplifier designed for industrial process monitoring. Housed in a durable enclosure for standard DIN rail mounting, this module efficiently processes signals from a 4-wire EGE flow sensor. It operates on a 24 VDC power supply and provides a normally open (NO) relay output to control external devices. Key features include a user-friendly potentiometer for precise setpoint adjustment and an intuitive vertical LED bar graph that gives a clear visual indication of the flow status and relay activation. This amplifier is an essential component for creating robust and responsive flow control systems in automation and manufacturing environments.