The digital dosing units are indicators which, in addition to displaying the measurement concerned, can send an output signal with a start-stop function to control a valve or another instrument.
The digital dosing units can also be equipped with some optional functions such as alarms and analog outputs.
In some digital predeterminers, alarm thresholds can be set, so that, when the value read exceeds these thresholds, digital outputs are activated which are useful for signaling and controlling the event.
Other digital dosing units can be equipped with analogue outputs which, through an electric signal, can be connected with a recording instrument to memorize the signal.