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), 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 Front Panel Key or Remote, Connector Type Plug-In Terminal Block