APC UPS logging/monitoring supply/battery voltage

I just purchased an APC UPS which I will probably have to send back.
Fergus McMenemie wrote on :

I just purchased an APC UPS which I will probably have to send back. Despite my best efforts, quizzing the supplier, it appears the UPS and its supplied software has no options to monitor and log the supply side voltage.

A few years ago I interfaced several APC UPS' to Sun Solaris servers. The powerchute software had a quite useful logging function.

Is anybody able to advise which UPS and software combination offers the best logging.monitoring solution for Mac OS.