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A group that uses captive California Sea Lions operating freely in a lagoon that is connected to the ocean needed to be able to track individual animals by use of a tracking device. The device uses GPS to determine its position (on the surface, not underwater) and transmits that position back to the handler. The housing was made out of 1.5-inch PVC pipe with an acrylic door that is attached to a Nylon harness on the animal. The PVC door uses a single o-ring bore seal and employs a string closure.

This housing was designed to hold electronics and batteries that would serve as a DVR for deep-ocean cameras. The cylinder is 6-inches inside diameter, with 19-inches of inside room, ½-inch walls, and a 2-inch thick Aluminum door. The door features a 2-inch thick acrylic window, through which a LCD TV monitor is visible.

This is another variant of a housing for the Licor Li_1400 datalogger. It has an underwater connector for the light sensor, a thumb trigger for taking readings, and a Lock-Line semi-rigid mount for the sensor, so that it can be deployed under reef overhangs. The housing is built of ½-inch clear cast acrylic, with a face-sealed ¾-inch acrylic door. It is designed for 160 ft (48M) depth, and was shipped in a custom foam insert for a Pelican case.

This 160-foot depth housing was made for a Fisher M-101 metal detector, for use in locating metal bars embedded in concrete in an underwater tank that was being dismantled. We also made long cables so that surface support personnel could hear the same signals as the diver did. The box was machined out of two PVC blocks that were cemented together with interlocking joints for alignment, and the door was clear cast acrylic. There are controls for On/Off/Volume and Penetration.

This housing holds two video cameras for use as Digital Video Recorders (DVR) for external video cameras, all mounted on a lander that can be lowered to the sea floor at depths of 500M. The housing also accommodates dual time sync generators and dual custom battery packs. The cylinder is anodized Aluminum, 6.9” OD, 24” long, ½-inch walls and a 1-inch end plate. The Aluminum door is 2-inches thick, with a double o-ring bore seal and string closure. The door has holes for two connectors for feeds from external cameras, as well as a pressure switch to turn it on...