The monitor relay on the Crop Link Pro monitors and alerts the on/off status of devices such as electric motors, power circuits and generators; and when attached to a bin unloading motor, it is effective for grain theft detection. Also ideal for subsurface drip irrigation systems, a single Crop Link Pro can monitor and control multiple pump, flow, pressure and tank-level systems. The Lite version offers a lower price point for applications that only require one or two relays and limited analog and digital inputs. Primarily used for simple on/off pump control along with flow and pressure monitoring.