Temperature Monitor Widget is the Dashboard version of its "bigger brother" Temperature Monitor. It is recommended that you use Temperature Monitor first before using the widget edition to learn more about the sensor equipment of your computer. The applications are designed to give you access to all temperature sensor readings Mac OS X uses to monitor and cool your computer.
What's new in Temperature Monitor Widget
Added support for the Mac mini (Late 2012), the Mac mini Server (Late 2012), the MacBook Pro Retina 13-inch, the MacBook Pro Retina 15-inch (Early 2013 Revision), the MacBook Pro Retina 13-inch (Early 2013 Revision), the iMac 21-inch (Late 2012), and the iMac 27-inch (Late 2012).
Enhanced support for processing sensor readings for sensors indicating offline or error states.