22 March 2001 - 0.44.3 released Welcome Welcome to the support page for Network UPS Tools. This project is setting out to monitor every kind of UPS with sufficient interest behind it.
Many models have serial ports that allow monitoring of some kind.
While the feature sets vary wildly, there is a compatibility layer that lets them all get along. Useful features like safe shutdowns and live web monitoring have been built on top of this foundation. You can also have many systems running different operating systems monitoring a single physical UPS thanks to the network communications layer. The source code is made available under the terms of the GNU General Public License . Also see the feature list for more information on what you'll find here.