Electrical Counters: Counter Type - Electronic Time Counter; Application - Count-up; Digits - (7) 8.6 mm H - LCD; Count - max - 999h59m59s/9999h59.9m; Voltage - Internal Lithium Battery; Connection - Screw Terminals; Reset - External or Manual; Mounting - Flush; Dimension - 1.89"W x 0.94"H x 1.91"D (48.0 x 24.0 x 48.5 mm); Additional Information - Count Input: PNP/NPN universal DC voltage input, Color: Black; Manufacturer Series - H7ET