The A103 Preset Counters are amazingly compact in size and low in cost, with a full complement of popular features. In addition to the preset counter models shown here, the A103 series also includes matching indicators for count-totalizing, timing, and rate/speed metering, as well as preset-timer models. All are in a uniform 36 x 72 millimeters bezel size package, enhancing your control panel with a family of devices that look and program alike. A supertwist LCD display with thick 12mm (.47") high digits allows for easy viewing at a glance and feature display-backlight capability by simply connecting an external 12VDC supply. Powered by an internal 3 volt battery, the A103's unique design has two battery slots; this allows battery changeover without loss of memory. Numerous types of inputs can be accepted giving you a totally self contained system not requiring external power. Selectable normally-open or normally-closed operation, High visibility 7-digit LCD display with backlighting capability. Long life 3 Volt lithium battery eliminates the need for external power. Accepts input signals from a variety of sources: Dry Contact, PNP or NPN Sensors, Encoders High speed and low speed count inputs. Resettable remotely or from the front panel. Programmable security of front panel reset button and preset entry Option modules provide additional functionality and added convenience. Fast, easy installation NEMA 4X/IP65 rated front panel for use in washdown environments. The A103 Preset Counters are further enhanced by a series of quick attach option modules. These can provide a power supply for sensors and display backlighting, provision for high or low voltage AC or DC count signals, and mechanical relay output.