AE-OPT-230 provides a low speed (up to 25Hz) counter input for the AE series of process indicator displays. It is available in 1, 2, 3, 4, 5, and 6 digit versions with digit sizes ranging from 1-inch high to 12-inch high. Standard signal types for count and reset includes dry contacts from limit switches, proximity detectors, or relays. The opto-isolated inputs allow the controls to be up to 1000ft away from the display.