Electronic operation with configurable timer. Allows a special timer to be activated when more coins are inserted. For example, to allow extra time for the drying function in laundries.
A pre-warning relay that activates an acoustic or light signal to warn the user of the end of the timer. This allows time for the user to insert more coins and extend the time without cutting off the power, shower water, TV, etc. It can also be connected to an external timer pause switch.