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Four sources
See CPU, GPU, internal SSD and a detected external SSD in one compact native panel.
NATIVE MACOS APP
A local, read-only Apple Silicon temperature monitor for the macOS menu bar. It shows CPU, GPU, internal SSD and detected external SSD temperatures when macOS and the connected hardware expose a real sensor value.

Public ThermalAtlas project screenshot
HIGHLIGHTS
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See CPU, GPU, internal SSD and a detected external SSD in one compact native panel.
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A sensor without a real readable value is shown as unavailable, never estimated or invented.
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Temperature data refreshes locally every two seconds. ThermalAtlas does not control fans, power settings or other system settings.
PRIVACY
There are no accounts, analytics, advertising, cloud services or telemetry. Sensor and drive information is read locally; temperature histories are not saved. The selected appearance is stored only in local app preferences.