The upper section mounted above the ceiling is constructed of aluminum. The EH2100 has a riveted back box and the EH2100P has a fully welded and sealed back box.
The EH2100P are engineered for ease of installation and service. The lower section is hinged to provide convenient access for camera and lens adjustments. The adjustable camera mounting sled allows the camera to be positioned vertically or horizontally, depending on the camera size. A Phillips screw at the front of the enclosure secures the cover.