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A few months ago I met you as part of the Laptop cooler test from AUKEY CP-R2 introduced the system monitor or system monitor, the demo version of which I used for the test series on the Mac. The tool shows the processor temperature, the current RAM usage and other values. But now I stumbled across another, fully free Mac tool for reading out temperatures and many other system values. The project HWSensors with the macOS app HWMonitor shows significantly more values, has a better user interface and also offers the measured values in a diagram as a graph.
The freeware HWSensors for reading sensor values from the Apple Mac, iMac and MacBook is a good alternative to iStat Menus and the full version of the System Monitor mentioned above. It is also open source (see Github download below) and resourceful developers can adapt it for their purposes. If you don't want to tinker, but want to use a ready-made tool to monitor the temperatures, fan speed and the like on the Apple Mac, you can also look at the dmg file of the HWMonitor App download - also for free.
Before I get to the HWSensor download or the HWMonitor download, here is a list of the features and sensor accesses that you get delivered with the software with a look and feel:
Click on the gear wheel in the top left of the drop-down window of the HWMonitor app and then on Settings ..., then you get to a comprehensive overview of further possibilities of the free Mac tool. Here is a brief summary of the four tabs in the Settings window:
It is always good to know when the computer is overheating or is reaching its limits in some other way. But if you can't give it a break, reduce the load or provide additional cooling, then it will stay at its limit for a certain period of time. If this happens with activated notifications of the HWMonitor, then one push message after the other comes. So if the work has to be finished and you can't stand the small windows in the upper right corner, then turn off the notifications in the settings under “General”. Once the work is done, the Mac can then rest.
If you want to download HWSensors, i.e. the open source project with all the individual files for tinkering, developing and integrating into your own projects or apps, then you will find the download on this GitHub page.
If you want a finished dmg that provides the finished program for reading out temperatures, SMART values and other sensor values on the Apple Mac, you can find the download on that GitHub subpage.
SourceForge also has a page about HWSensors (here). This shows further functions of the HWMonitor Tool. Among other things, the call of much more extensive values for the drives and individual control of the Mac fans.
I didn't find these features in the version of the GitHub page linked above, although this seems to be the most current version of the app. If you have a tip about the difference to the SourceForge version, please leave an insightful comment;)
After graduating from high school, Johannes completed an apprenticeship as a business assistant specializing in foreign languages. But then he decided to research and write, which resulted in his independence. For several years he has been working for Sir Apfelot, among others. His articles include product introductions, news, manuals, video games, consoles, and more. He follows Apple keynotes live via stream.