HWSensors
All information from hardware sensors on your Mac
HWSensors is a software bundle that includes drivers and applications that allow you to access information from hardware sensors available on your Mac.
FakeSMC is an open source SMC device driver/emulator developed by netkas (http://netkas.org/).
NOTE: FakeSMC & Plugins starting from v915 provide additional sensors information to HWMonitor then running on Macs.