The WT200 is a low cost, easy to use controller for heating, air conditioning,
lights and other uses of energy.  A web browser makes it easy to set and change
schedules to meet your needs.

These thermostats control the temperature plus enable the WT200 to set the desired
temperature according to the time-of-day set back schedule. The current temperature
and heating / cooling equipment running state are sent to the WT200 whenever they
change. The display shows the current temperature, the heat and cool set points along
with whether it is heating or cooling.

Relay modules provide control of electric circuits for lighting, signs, fans and
other equipment. Each module contains eight relays and up to two modules can be used
with each WT200.