Tunabelly Software

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Temperature Gauge (TG) Pro 2.3

Keep your Mac cool while controling fan speeds, monitoring temperatures and finding faulty sensors.

Compatible with Mac OS X 10.7, 10.8, 10.9 and 10.10 (Yosemite)

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Of the very few number of Mac apps which monitor temperature and manage fans, TGPro is the one I prefer.

Jeffrey Mincey from mac360.com

TG Pro helped diagnose a problem I suspected I was having with my fans and it was helpful to have it confirmed…I would recommend anyone try TG Pro if they want to have more control over the temperature of their Mac.

Review from Ylanthe
See the current and maximum recorded temperatures (in Celsius or Fahrenheit) for every temperature sensor in your Mac.
View and control the speeds for every fan. With Auto Boost, have the fans go to a specific speed when a predefined temperature is hit.
Always available status icon menu includes all temperatures, fans and manual controls.
Show a notification if a sensor or the Mac gets too hot, or when the fans are turned up with Auto Boost.
Monitor remote servers by having an email sent instead of a local notification.
Discover faulty fans and temperature sensors with the built-in diagnostics.
Log all temperatures, fan speeds, diagnostics and notifications to a CSV file.
Run in the background with configurable info displayed in the menu bar.
Supports all Macs, including the new Mac Pro 2013 model as well as all MacBook Pros (including Retina), iMacs, Mac Minis, MacBook Airs and older Mac Pros.

Click here to see what's changed in TG Pro 2.3 (Nov 18, 2014)

  • [NEW] Added ability to send crash reports directly from the app.
  • [NEW] Added OS X version and model to feedback emails.
  • [FIXED] Auto Boost can now decrease fan speeds.
Version 2.2.2
  • [FIXED] Launching on Lion (OS X 10.7)
  • [FIXED] Potential hang when sending an email notification.
  • [FIXED] Status menu fan button being on when Auto Boost is enabled.
Version 2.2.1
  • [FIXED] Issue with fan control potentially not working.
  • [FIXED] Possible crash on startup.
Version 2.2
  • [NEW] Added active GPU name to the status menu.
  • [NEW] Added ability to have email notifications. This is a great new feature for remote server monitoring.
  • [FIXED] Status menu and icon in Yosemite dark mode.
  • [FIXED] Updated diagnostics string when there is one or no fans.
  • [FIXED] Ranges of Fahrenheit converting incorrectly to Celsius.
  • [FIXED] Reduced number of console messages.
  • [UPDATED] PCI, Northbridge and GPU area icons.
Version 2.1
  • [NEW] Fan control is suspended when the Mac sleeps and restored on wake.
  • [FIXED] Manual fan control switch is turned off when fan Auto Boost is active.
  • [FIXED] Fan Auto Boost configurations changes take effect without an app restart.
  • [FIXED] Fan Auto Boost configurations are only used once editing is finished.
  • [FIXED] Fan Auto Boost algorithm works properly for low percentage values (ex: 10%).
Version 2.0.2
  • [FIXED] Manual fan control switch in the status menu updates in sync with the one in the main window.
  • [FIXED] Using every day log option on systems where the date has slashes in it.
  • [FIXED] Auto Boost sometimes not turning on when on battery power.
  • [FIXED] Prompt for launching on login was appearing every time the app started in rare cases.
Version 2.0.1
  • [FIXED] Send anonymous report preference is now working correctly.
Version 2.0
  • [NEW] Support for Mac Pro 2013 models.
  • [NEW] More sensors for almost all Mac models.
  • [NEW] Completely re-designed status menu. It now includes all temperatures and fans, plus manual controls.
  • [NEW] Completely new options for fan Auto Boost. Choose the fan percent, temperature to trigger, the type of trigger and whether it’s for plugged in or battery power.
  • [NEW] Added ability to link fan speeds when using manual control.
  • [NEW] Added ability to choose the location of the log file.
  • [NEW] Added ability to de-register a license.
  • [NEW] Added preference to adjust the gradual time for Auto Boost control.
  • [NEW] Added preference for how often a new log file is created.
  • [NEW] Added preference for global hot keys to show main window and turn manual fan control on/off.
  • [NEW] Added diagnostics to log files.
  • [UPDATED] Significantly better naming of some sensors.
  • [UPDATED] Better descriptions for common shutdown codes.
  • [UPDATED] Better numbering of sensors where there are multiple ones of the same type.
  • [UPDATED] Completely re-designed preferences UI.
  • [UPDATED] Updated sensor area icons.
  • [FIXED] Discrete GPU will now show “N/A” when it’s been turned off by the OS.
  • [FIXED] Columns no longer shift when the discrete GPU is turned on/off by the OS.
  • [FIXED] Faster app startup.
  • [FIXED] Less console noise on app startup.
  • [FIXED] Removed some duplicate sensor names.
  • [FIXED] TGFanHelper app now uses less file handles.
  • [FIXED] Clicking a notification will show the main window.
  • Version 1.8.4
  • Updated for Mac OS X 10.10 (Yosemite) compatibility.
  • Version 1.8.3
  • Resolved issue with the message in the diagnostics when the shutdown code was STOP_CAUSE_INIT_CODE.
  • Version 1.8.2
  • Resolved issue with a notification when the shutdown code was STOP_CAUSE_INIT_CODE.
  • If a bad fan is detected, an expanded name is used. Ex: “ODD” becomes “Optical Disc Drive”.
  • Less console logging when fan speeds are adjusted.
  • Version 1.8.1
  • Resolved issue where temperatures would only log as Celsius.
  • Resolved issue where HD temperatures would not be logged.
  • Updated Paddle framework.
  • Version 1.8
  • Added preference to show the main window when Auto Boost is active.
  • Fan status icon is now orange when there is an issue with a fan.
  • Version 1.7
  • Resolved potential crash on launch.
  • Resolved potential crash when checking drive temperatures.
  • Resolved issue with sensors in the LCD area.
  • Resolved issues related to showing drive temperatures in the status bar.
  • Log file is only created if logged is enabled.
  • Updated the name of the TCGc sensor.
  • Version 1.6
  • Added support for gradual fan speed increases with Auto Boost.
  • Resolved issue where the manual fan speeds would not be restored when waking from sleep or a system restart.
  • Move to Applications folder on first launch.
  • Version 1.5
  • Resolved issue with manual fan settings when waking from sleep.
  • Work around for bug in Mavericks (10.9) when showing the trial window.
  • Log file is called TG Pro Log.txt.
  • Version 1.4
  • Clearer fan Auto Boost notification text.
  • Reduced the size of the app.
  • Improved the trial and purchasing experience.
  • Version 1.3
  • Resolved crash the fan or sensor diagnostics showed an issue.
  • Improved the trial and purchasing experience.
  • Version 1.2
  • Resolved potential crash when enabling fan control.
  • Switching to Fahrenheit shows the correct temperatures in the Fan preferences.
  • Fan control sliders will properly resize when the window width is small.
  • Fan alerts can be turned off.
  • Auto updater works.
who we are
Tunabelly Software Inc. is a Canadian software development company run by Matt Austin.
contact us
Email: support@tunabelly.com
Twitter: @tunabelly
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what we do
Make amazing Mac OS X apps.