Enclosure Open Back Indoor Outdoor Color Clear Material Polycarbonate Mounting Surface Width 10 in Depth 4 1/2 in Height 10 in For Use With Keypads Annunciators Volume Controls Lighting Controls Etc. Operating Temp -40 Degrees to 250 Degrees F Features Clear Polycarbonate Multipurpose Lockable Enclosure Helps Protect Large Units Against Physical or Environmental Damage Includes Open Conduit Back Box Exterior Key Lock Gaskets Mounting Hardware