Enclosure, Open Back, Indoor, Outdoor, Color Clear, Material Polycarbonate, Mounting Flush, Width 7 3/8 in, Depth 2 1/8 in, Height 5 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