makes these products suitable as buildings, shelters, houses, rooms, racks, sheds or canopies for control systems, instrumentation, analyzers, switchgear, and remote marshaling... and Shelter applications include Control Rooms, Analyzer Houses, Mud Loggers, Pump Houses, MCC and Switchgear Buildings, along with Data Centers, Security Centers, Guard Houses..., Sheds & Canopies Environmental Control Units UL Listed and Self-Certified Explosion Proof Air Conditioners, in Wall Mount, Roof Mount and Split Unit Configurations, and UL Listed...