Velleman Multifunctional Up/Down Counter Kit

Specification Features:

Very practical for counting people or parts, scorekeeping, ...
Counts up or down
Count input through on-board push buttons or by external pulses
Display modes: normal or time (hh:mm and mm:ss)
Internal oscillator allows time measurement
Memory function constantly compares the current value with a preset value and activates an output for as long as both are equal
Self diagnostic at power up
Comes with easy board-to-wire connector (20cm wire)
Counter input voltage: 3...12Vdc (normal dry contact also possible)
EQUAL output: 5Vdc / max. 50mA
Max. counting speed: 200 / sec. (2 / sec. with long debounce delay)
Max. count: 4 digits (9999 / 23h59m / 59m59s)
Power supply: 9 - 12Vdc
Power consumption: 150mA max.