Electronic Counter, Number of Digits 8, LCD Display, Character Height 0.32 in Black Numbers on White Background, Max. Counts per Second 40 Low Speed Mode, 500 High Speed Mode, Input Signal 10 to 300V DC, 20 to 300V AC, Output Rating 0.1A @ 30V DC, Output Open-Drain MOSFET, Mounting Rectangular Panel with Clip, Height 1.1 in, Depth 1.5 in, Width 1.1 in, Series 63, Scaler No, Preset No, Power Required Self Powered (15+ yr Lithium Battery)