The EZ Batch II micro processor is a simple no frills electronic Batch Controller it was designed as a low cost alternative to more expensive stand alone units. Assembled with high quality components and installed in a Nema 4 enclosure. The micro processor operates on 110V AC power and will accept most flow meter pulse or frequency outputs. Including NPN sinking, PNP sourcing, contact closure, passive, and open collector with an operating voltage range of 6 - 30VDC, and maximum frequency range of 2.5 KHz