For Psion SIBO Machines (3a and onwards)

A program to provide countdown timers, and which sets Psion alarms to ring when the time has elapsed.

Download here:


Copy the OPA file to the /APP directory, and then install from the Psion system screen.


The program allows you to set a countdown period, and it then sets an alarm to sound when the period has elapsed. It then graphically displays the remaining time.

Disclaimer (please note)

All the software on these pages is FREE, and is provided with absolutely no warranty whatsoever. The software has worked for me in practice, but if it destroys your data/machine/life,then you have no recourse to me. I suggest that you ensure you have a COMPLETE backup of all your data before using any of these programs (it's a good idea in any event).