Free Windows ME/2000/XP software chrono.exe (273K) for serial interface. (Sorry but not Win 95/98 anymore)
This is a further developement release of the interface software with help and will self install.
It has optional metric units - meters/sec, grams and joules.
Download as a file then run it from the Windows explorer.
Build 01.09.00 now autosenses between Mark 1/2/3/4 and has the RMS value in averaging fixed.
Also senses and works with any Serial port installed.