Honeywell T631A-C FARM-O-STAT AIR SWITCH CONTROLLERS 1631 CONTROLLERS PROVIDE LINE VOLTAGE CONTROL OF HEATING, COOLING, AND VENTILATION SYSTEMS IN FARM BUILDINGS OR STORAGE AREAS, TEAM 078318 Q7631C » Typical applications include barns, brooder houses, poultry houses, hog houses, pump houses, mite houses, and crop storage houses, » Blots in front and bottom of case provide maximum air circulation over the coiled sensing lament, « Rugged steel case treated to resist corrosion.