Counter, Number of Digits 8, LCD Display, Character Height 0.35 in, Max. Counts per Second 33,33,33,333, Input Signal 28VDC (SRC Mode), 3.6VDC (SNK Mode), Output Rating Not Applicable, Mounting Panel, Height 1.1 in, Depth 1.64 in, Width 2 in, Power Required Non-Replaceable Internal 3.6 V DC Lithium Battery, Prescaling Range 0 to 88,888,888, Reset Type Key, Connector Type Plug-In Terminal Block