This is a direct replacement for the Bou-Matic Receiver Group Controller. (No Pulsation option)
It has 2 main functions:
Controls the Milk Pump - Works with Bou-Matic float probes. Allows the pump to continue to run for an additional 1-60 seconds (adjustable).
Controls the Air Injector - Fully adjustable setting for the time the air injector is open.