Touch screen interface Five fan control through an intuitive interface Ultra fast selection and response time Display temperatures in both F and C Light switch turns off the meter when sleeping Automatic and manual modes of control Full compatibility with all types of fans using voltage control With 10 Watts per channel, the Sentry 2 will support almost all high end fans Tuned accuracy with only a tolerance of one degree Sound alarm to alert when the temperature is over Stored settings, the Sentry keeps your settings even after power off