upsmonitor is a small Python/Tk-based client for remote UPS status monitoring via NUT or apcupsd.
It requires Python 2.5 or later, and has been tested on Linux and Windows 98/XP/11.
List your UPS in .ups.conf (either in your home directory, or in the program location), with optional descriptions:
apc@foo HostFoo UPS
rack@bar
@quux apcupsd service on quux