Temperature Gauge 4.4.2
Monitor temperatures and fan speeds in your Mac.
Instead, we highly recommend Temperature Gauge Pro which has full fan control plus hardware diagnostics.
A free update to version 4.4.2 is available here after purchasing from the Mac App Store.
See the current and maximum recorded temperatures (in Celsius or Fahrenheit) for every temperature sensor in your Mac.
Show a notification if a sensor or the Mac gets too hot.
Log all temperatures, fan speeds and alerts to a CSV file.
Run in the background with configurable info displayed in the menu bar.
Works on all Macs, whether it's a laptop or desktop.