The EW-F and EW-Y are the only two control modules that have output capability. Both of these pumps can output a pulse synchronous with the operation of the solenoid unit. They can also each output a STOP signal when an external Stop Input stops the pump - this is somewhat opposite but can be interpreted in a similar manner.
In addition, the EW-Y pump can output a steady closed contact whenever the pump is operating in the Manual or External modes, regardless of pump speed. This is used more to remotely monitor whether the pump is in an operating condition or has manually been stopped.
Finally, the PosiFlow sensor can be attached directly to the discharge side of the E-Series pumps and output signals matching pulse for pulse the output pulses of the liquid coming out of the pump. The EW-Y control module can power and take the PosiFlow pulses in and monitor the pulses against the solenoid pulses. If too many pulses are missed compared to the pump strokes, the EW-Y can then output an alarm or similar signal.