Markel Thermostat for Heating and Cooling Applications

A thermostat is a device that automatically controls heating or cooling equipment in such a way as to maintain a temperature at a constant level or within a specified range, generally using a thermometer capable of triggering electrical switches that activate or deactivate the equipment. Markel's range of thermostats is impressive, from the popular ET Series to the more specialized Rain Tight Washdown Series - you'll find it all here.