A very compact totalizing counter available standard with an 8 digit LCD display or 6 digit LED display. Choose from self powered models containing a 7 year lithium battery, or from models accepting an external 12~24 VDC power supply. Externally powered units utilize a nonvolatile RAM to keep counted data during absence of power. Units are field programmable to accept PNP or NPN count signals, and models are available that accept direct high voltage signals, or signals from quadrature output encoders.