The AD16 environmental, dust free housing shall be constructed from .16 (4mm) thick aluminum. The camera housing shall be designed to prevent dust from entering the unit. Chemically strengthened glass shall be used for the faceplate. Three liquid tight fittings (2 NPT 1/2 and 1 NPT 3/8) shall be included for cable entry. A camera cradle assembly shall be included to allow easy installation and access to the camera and internal equipment. Input power shall be 24 VAC. An integral heater/defogger shall be standard in each unit and shall be mounted to the camera cradle to allow heat transfer to the window to minimize fogging in high humidity and/or freezing under cold temperature conditions. The temperature range shall be -40˚ F to +120˚ F. An aluminum sunshield shall also be available as a separately boxed items.