Deep inside the Mac’s bowels are a variety of hidden sensors and fans; all sorts of things going in there that could befuddle the average user, but could be useful if you have the right knowledge. With knowledge comes an app. With that app comes control.
Apple crams plenty of power inside today’s line of Macs, and with power comes heat, and with heat there’s a need for sensors and fans. Temperature Gauge is one of the few Mac apps which check the sensors and fans and alert you to a problem via Notification Center.
What you’ll see in Temperature Gauge is current and maximum recorded temperatures for each sensor in your Mac (first of all, you’ll be surprised at how many are in there). You can also view the speeds for each fan, and an optional Mac apps gives you control over the fans.
Click the All icon in the sidebar and view every sensor in your Mac. Or, click a specific item to view only those sensors. Temperature Gauge lets you received a notification if a specific sensor in your Mac becomes too hot. All temperatures, fan speeds, and alerts are logged.
Temperature Gauge runs in the background but the Preferences supply the settings to customize for your Mac. Temperatures can be checked every second or up to every minute (Celsius or Fahrenheit), including the Mac’s disk drive. The Alerts can be set go trigger a Notification Center alert when specific sensors reach a specific temperature.
The Menubar icon also displays information, including temperature, fan RPMs, average CPU temperature, and more. Temperature Gauge is modestly priced but does not include a try-before-you-buy option, however the TG Pro version, which is priced higher, has a trial, a tutorial, and has built-in hardware diagnostics.
Today’s line of iMac and MacBooks are thinner than ever, yet the CPUs are more powerful, so Temperature Gauge becomes a good way to head off a problem before it’s too late.