Enclosure Open Back Indoor Outdoor Color Clear Material Polycarbonate Mounting Flush Width 10 in Depth 10 in Height 3 1/2 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 Back Box Exterior Key Lock Gaskets Mounting Hardware