STI’s heated enclosures offer an excellent way to secure electronics outside and in exposed environments such as unheated warehouses, storage units, freezers, etc. The radiant heat plate prevents controls from becoming sluggish or inoperable. Heaters are designed to keep temperatures above 32 deg. inside the covers. Multiple sizes are available for controls, pull stations, keypads, horn/strobes and more. Molded of clear polycarbonate, each protected unit can be clearly seen and quickly identified. STI offers a three-year guarantee against breakage of polycarbonate in normal use (one year on electro mechanical and electronic components).