ksensors (0.7.3-15ubuntu1) [universe] lm-sensors frontend for KDE
libsensors-dev (1:2.10.4-1ubuntu1) lm-sensors development kit
libsensors3 (1:2.10.4-1ubuntu1) library to read temperature/voltage/fan sensors
lm-sensors (1:2.10.4-1ubuntu1) utilities to read temperature/voltage/fan sensors
sensors-applet (1.7.12+dfsg-1ubuntu1) [universe] Display readings from hardware sensors in your Gnome panel
wmsensors (1.0.4-6) [universe] WindowMaker dock applet for lmsensors
wmtemp (0.0.5-4) [universe] WM dock applet displaying lm_sensors temperature values
xfce4-sensors-plugin (0.10.0-2ubuntu2) [universe] hardware sensors plugin for the Xfce4 panel
xsensors (0.50-1ubuntu1) [universe] A hardware health information viewer
apt-get install package_name
at the command line will install "package_name" for you. The package names are listed above.
These are not indentical to speed fan but they work in a similar way.
GL