UPS management, graceful shutdown, and energy management software for computers, and servers using dedicated serial or USB connections.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
- Linux
France
EU

Apps similar to OPMONis include PowerChute Serial Shutdown. It's paid, but WinNUT-Client and Network UPS Tools are free. Other options are UPSmonitor, ProgramTECH VOLT and UPS Assistant. In total there are six Battery Monitors like OPMONis for Windows, Linux and Mac.
UPS management, graceful shutdown, and energy management software for computers, and servers using dedicated serial or USB connections.

WinNUT-Client is the evolution of a long time project, with the goal of monitoring an Uninterruptible Power Supply and responding to power events. Originally starting out as a script, WinNUT is now programmed in VB.Net on the .

The primary goal of the Network UPS Tools (NUT) project is to provide reliable monitoring of UPS and PDU hardware and ensure safe shutdowns of the systems which are connected.
UPS Hyper-V Shutdown Monitor monitors your UPS via SNMP v1/v2c/v3 or NUT and gracefully shuts down all Hyper-V hosts with all virtual machines on power outage — before the battery runs out.


This application is a free and lightweight UPS monitoring and automatic shutdown solution for Windows. It was developed as an alternative to APC PowerChute, focusing on simplicity, stability, and ease of use.

A tiny free UPS monitoring program for Megatec/Winpower protocol based (Ippon, Mustek, Sven, Inelt) hardware. Provides access to all UPS signals and functions at zero CPU or disk cost.



