Power Sentinel - Modern UPS Monitoring Software
An All-In-One UPS monitoring Solution designed for over 1000+ UPS systems
Light on system resources, packed with features for every day users and professionals
Power Sentinel
Power Sentinel is a next-generation UPS and energy monitoring suite designed for modern systems, home power users, and small to mid-sized businesses. Built with performance, reliability, and clarity in mind, it delivers deep insight into your power environment while remaining lightweight and easy to use.
Whether you're protecting mission-critical workstations or managing home power backup, PowerSentinel keeps you informed and in control.
Why Choose Power Sentinel?
Unlike traditional UPS monitoring tools, PowerSentinel delivers a complete and modern experience from the ground up. Built for speed, stability, and clarity, it offers one of the most refined user interfaces available for UPS systems while integrating powerful features such as power analytics, cost tracking, and smart shutdown automation.
Power Sentinel leverages the industry-standard NUT (Network UPS Tools) backend on both Linux and Windows, providing universal UPS communication across hundreds of models and vendors.
By building on NUT, Power Sentinel enhances the user experience with a modern dashboard, real-time alerts, and simplified setup - especially on Windows systems where traditional NUT configuration can be challenging. This integration allows users to harness the full power of NUT without the complexity, making UPS monitoring and battery management easier, faster, and more intuitive.
We are proud to support and acknowledge the open-source communities whose work makes projects NUT and NSSM possible.
Whether you're guarding against power outages, optimizing battery lifespan, or monitoring different UPS devices on different platforms, PowerSentinel provides the tools and reliability you need.
With optional OEM licensing, multi-platform support, and future-ready integration for custom BMS systems, PowerSentinel is built to scale from home environments to small business and enterprise deployments.
Ready to Dive In and get cutting edge UPS Monitoring suite?
Alternatively, if you are looking for a Solar Monitoring Solution
Power Sentinel Features
Power Sentinel's Main Dashboard
Elegant, simple, refined and intuative dashboard. Showing you an overview of your UPS system.
At a glance the dashboard gives you:
- Your Utility's Power Draw
- Your UPS Power load overall
- Which mode your UPS is running in
- Loadshedding Information (if Setup)
- Animated Power Flow Indicators
- Battery Volts, Amps and State of Charge
- UPS current load Watts and Status
- Estimated Run Time based on UPS load
- Incoming utility power information
- AVR and Overload Indicators
- Which modules are active
- Custom Timers for Shut Down Controls
- Temperature of your UPS (If Available)
Tracking Power Usage Data Over Time
We did the math so you don have to. Easily track your UPS power usage over predefined periods.
Your power usage data is stored locally and stays private within your own network. No 3rd party cloud based service needed.
Easily Export all usage data to PDF to print out for your records
The Currency Indicators adapt to your Systems Localisation settings
Power Events at a glance
From power failures to alarms and general UPS information
PowerSentinel will log every power event, neatly grouped by day and week and older. Easily readable so you never have to guess what happened
View and export all power event that took place to a PDF docucment for your convenience
Let's get Technical
If you are a bit more technical you can also see all Driver information is raw format
PowerSentinel give you a complete overview of your UPS and what data it supplies via NUT
From here you can also send supported commands to your UPS, Disable the beeper, do a battery test and much more
Battery State of Health (SOH)
PowerSentinel tracks Battery State of Health (SOH) over time to give you insights into the lifespan and reliability of your batteries. By monitoring cycles, depth of discharge (DoD), and usage trends, it provides a clear visual indication of battery condition from Good, Used, Poor to Replace.
For UPS systems, PowerSentinel can detect critical flags such as Replace Battery (RB) and alert the user immediately. This helps prevent unexpected failures and allows proactive maintenance, saving both time and costs.
The SOH tracking combines historical trends with real-time UPS telemetry, making it easy for users to understand battery health at a glance and plan for replacements before downtime occurs.
Yes, we killed a battery specifically for the sake of testing and screenshots!Software Comparison
How Power Sentinel compares to other UPS monitoring tools.
| Feature / Software | Power Sentinel | WinPower | APCUPSD / NUT-based Tools |
|---|---|---|---|
| OS Support | Windows (via NUT integration) Linux (via NUT integration) |
Windows Linux support varies by UPS/model |
Some Limited Windows support Linux Supported |
| UPS Model Compatibility | 1000+ UPS models supported through NUT | Mostly PowerWalker and Limited OEM-supported models | Broad manufacturer support |
| Battery State of Health (SoH) | Yes - cycle tracking, DoD, aging, trend graphs | No dedicated SoH health tracking | Requires custom scripts or manual logging |
| Analytics & History | Full analytics dashboard, charts, logs & exports | Basic event logs only | Available but requires configuration / CLI tools |
| UI / Ease of Use | Modern UI, clean dashboards, easy setup | Outdated UI, basic monitoring only | Technical / command-line oriented |
| Load-Shedding | Yes - designed for South Africa load-shedding environments | Not specifically optimized for load-shedding | Depends on user config and scripting |
| Notifications & Alerts | Real-time alerts, shutdown warnings, battery health alerts | Basic alerts | Possible but requires setup |
| Data Storage / Privacy | Local database, no cloud required, exportable | Local, but limited data retention | Local logs, varies by system |
| Target Users | Home users, SMBs, labs, modern monitoring needs | Basic UPS users needing simple shutdown control | Sysadmins, power users, technical and Server environments |
| Code Base | C++ Fast stable and light on system resources | Java based, Slow and unstable at times | Mostly C, Fast Light and low system resource |
Additional Information
Get Notified Via Telegram
Power Sentinel uses Telegram to push notifications to you when events occur so you are always in the loop, even when you are away. We offer a detailed log of events that happened throughout multiple days and weeks that you can view at any time.
Not only does Solstus monitor and send notifications about your power status but also notifications about Eskom and LoadShedding. We provive a direct query to Eskom or via the EskomSePush Api - a well knows South african Notification serices.
A Telegram bot and a channel set up is required, Power Sentinel provides detailed instructions on how to go about setting up Telegram for push notification.
Power Usage Tracking, Cost Calculation & Data Export
Understanding your energy consumption is essential for managing electricity costs, optimizing backup runtimes, and making informed decisions about your power environment. PowerSentinel includes a complete power analytics suite designed to give you clear and actionable insights into how your system uses electricity.
PowerSentinel continuously monitors your UPS for real-time power draw, battery usage, and runtime performance. These metrics are logged and organised into easy-to-read charts and summaries, helping you monitor trends over days, weeks, months and years even.
Main Capabilities
- Real-time power draw monitoring
- Daily, weekly, monthly and yearly energy usage summaries
- Automatic cost calculation using your local kWh rate
- Exportable data to PDF for further analysis or usage tracking
- Event-based tracking for outages, brownouts, and battery events
- Local database storage using optimized for long-term history
By entering your electricity tariff, PowerSentinel calculates estimated daily and monthly energy expenses based on actual usage. This helps you understand exactly how much your system costs to run especially useful during LoadShedding or when relying heavily on backup power solutions.
All tracked power data can be exported with a single click, making it ideal for users who want to perform external analysis or keep records or provide usage reports for business environments.
With PowerSentinel, your power environment becomes transparent, measurable, and easy to optimize.
LoadShedding Awareness & Smart Shutdown Automation
In South Africa, LoadShedding remains an ongoing challenge that can cause sudden power loss, data corruption, and potential hardware damage. PowerSentinel helps protect your system by intelligently monitoring LoadShedding schedules and preparing your PC ahead of time.
PowerSentinel can obtain real-time LoadShedding status from two reliable sources:
- Direct Eskom public API data
- The EskomSePush (ESP) community API for accurate area-based schedules
By tracking your area's active or upcoming LoadShedding stages and schedules, PowerSentinel can automatically take action before the power goes out. This includes initiating a safe, timed shutdown of your PC just minutes before the scheduled outage begins preventing data loss and extending battery lifespan on connected UPS devices.
Whether you're working, gaming, or running a home lab, PowerSentinel ensures that your system is never caught off guard by an unexpected cutoff. Combined with its UPS monitoring features, it provides a complete and reliable solution for navigating South Africa's LoadShedding environment with confidence.
Wake-On-LAN (WOL) & Keep-Alive System
PowerSentinel includes an integrated Wake-On-LAN (WOL) system that allows your computers, servers, and networked devices to be powered on remotely using Magic Packets. As long as the hardware and BIOS support WOL, the software can wake devices from shutdown, sleep, or hibernation to restore uptime after an outage.
For regions affected by load-shedding, PowerSentinel offers a unique Keep-Alive module. When enabled, it broadcasts a WOL Magic Packet every 10 minutes to all configured machines to ensure systems remain online or automatically return to service if a scheduled outage never happens.
Why This Matters
- Automatic recovery when load-shedding is cancelled or delayed
- Ensures uptime for PC's, NAS devices, media systems, and workstations
- No manual intervention systems come back online as soon as stable power returns
Configuration Options
- Assign MAC address, hostname, and descriptions for each device
- One-shot wake commands when grid power is restored
- Reliable recovery and network availability in unstable power environments
Custom Shutdown Timers
PowerSentinel provides up to three user-defined shutdown timers that can operate in either manual mode or in LoadShedding-Managed mode for automated safety shutdowns.
Manual Shutdown Scheduling
In manual mode, you can set specific times for the system to shut down perfect for:
- Daily power-saving routines
- After-hours workstation shutdowns
- Unattended system power-off
- Automatically shutting down after downloads or tasks
LoadShedding-Managed Mode
When linked with the LoadShedding module, timers become intelligent. Instead of fixed hours, shutdowns are
automatically scheduled before the next load-shedding event, ensuring safe power-down and maximum
UPS runtime.
Supports up to 3 scheduled load-shedding periods.
Key Features
- Three independent shutdown timers
- Modes: manual or LoadShedding-managed
- Protects hardware from sudden outages
- Ideal for home labs, desktops, servers, and media centers
- Fully integrated with PowerSentinel's event system
Whether you need everyday automation or smart protection during load-shedding, PowerSentinel's shutdown scheduler keeps your systems safe, efficient, and predictable.
Low On System Resources
PowerSentinel is engineered for efficiency. Unlike many traditional UPS monitoring tools that rely on heavy frameworks or constantly running UI processes, PowerSentinel is written entirely in C++ and is optimized to run silently as a lightweight background service.
During internal testing on Windows 11, PowerSentinel demonstrated a memory footprint as low as 6MB far below most comparable UPS software.
This ensures:
- Perfect for Gamers and Content Creators
- Minimal impact on system performance
- Ideal operation on low-power or older hardware
- No unnecessary CPU overhead while monitoring UPS or grid events
- Consistent reliability even under load-shedding conditions
Whether running on a workstation, server, or compact home-lab device, PowerSentinel remains fast, responsive, and extremely resource-friendly.
Power Sentinel UPS Monitoring Software
Track, monitor and power off your PC safely when the power goes out
Introducing Power Sentinel
- Light Weight All-in-one UPS Monitoring App
- LoadShedding notification and Management
- Power Usage Tracking and Plotting Charts
- Support 1000+ UPS models via NUT
- Modern low resource usage
- Animated Power Flow Event Indicators
- NUT and WinDriver Install Wizard (Windows)
- Act as NUT Client or Server
- Including Battery State of Health Tracking
- Power Events logging and reports export
- Wake on LAN and Keep Alive modules
- Telegram Push Notification Support
- 3 Custom Shutdown Timers to power off your PC
- Lifetime free Updates on improvements
- No Subscriptions, Lifetime License
- Trial Version available
Get Power Sentinel UPS Monitoring System
Estimated $29 or €25
Recommended for Windows 10 / 11
Available for Debian Linux Desktop Systems (AppImage)
Note: Linux users will need to setup NUT manually, NUT is not bundled with the appimage
Currently Supported on Debian-based systems like Ubuntu, Mint, Zorin etc
Development Changelog
- Initial Windows 7, 8.1, 10 and 11 Release
- Initial Linux AppImage Release
Version 1.0 (1 December 2025)
Tested & Supported UPS Devices
Check if your UPS is supported by visiting the NUT Website Here
Note: It is impossible for us to test with all UPS models, basically if your UPS works with NUT then it will work with PowerSentinal
- Eaton 5E 650i (USB)
- Eaton 5E 1500i Series
- Meissner 600VA Series
- Numeric 600 Series (Serial and USB)
- Pro Power 600VA Series