Designed specifically for use in National Electrical Code (N.E.C.) Article 547 applications requiring a rugged, weather resistant, durable control for both heating and cooling (ventilation) in agricultural, industrial and commercial environments. The T115 is suitable for use in animal confinement environments as well as factories, warehouses, garages and gymnasiums. The unit will tolerate spraying with water, high humidity, airborne contaminates and moderately corrosive conditions.