4 Digit count up/down with memory. It cyclically count up/down till a maximum of 9.999 units. It includes the memory function which allow to store in an internal Eprom the last data when the power supply is stopped.
CD-6 modules are Count up and Count down with pre-selection and relays output. Thansk to a switch you could count up or count down impulses closing contacts on the signal input or injecting external signal.
Pulse counter with two digits, up to 99. Due to its small size, is suitable for models, Scalectrix, etc. Counts the down side impulses through the closure of contacts over the signal input or though the insertion of an external signal.