UPS Assistant was designed for the monitoring of an Uninterruptible Power Supply (UPS).It will reliably perform its function on UPS' connected to a computer through USB or COM port and supports the Megatec/Centralion protocol (Ippon, Mustek, Sven, Inelt).UPS Assistant sits in the systray silently monitoring the status of the unit and will readily provide information on I/P voltage/frequency, O/P voltage/current, overall battery voltage, temperature, and overall UPS status, and more. There is also a handy battery charge percentage graph that allows for easy viewing.