Full software, not an App! Definitely not available on the App Store

Current Version

4.98, released September 20, 2013

What's new in this version?

Languages

Requirements

Mac OS X 10.4 or later (including systems called OS X)

For older systems look here.

The application won't work with Mac model series released after November 2012.

Universal

Temperature Monitor

Temperature MonitorTemperature Monitor is an application to read out all accessible temperature sensors in Macintosh computers released between August 2002 and October 2012. The program can visualize the history graphs of the readings, display measured values in a large variety of fashions, or announce readings by speech output. It can also store and export values.

Temperature Monitor is the small gratis version of the application Hardware Monitor. Hardware Monitor can additionally display "non-temperature" sensors and artificial operating system probes, or control external LCD panels. Temperature Monitor is part of a software suite of 9 different monitoring applications which can be used for numerous purposes.

Temperature Monitor is electronically distributed software. You can download the product free of charge.