Page 72: of Marine Technology Magazine (July 2017)

low-cost pressure-proof housing with mous Underwater Recorder for Acous- 11-lbs of buoyancy (empty). The plastic tic Listening) is an underwater recorder spheres will not corrode in seawater, are used for any application that requires electrically inert, and invisible to WiFi continuous underwater sound record- and other RF. The LiPo Battery Pod pro- ing. It can record things like marine vides 16vdc fully charged, 32Ah capac- mammals, methane bubbles, underwater ity, with a net buoyancy +4-lbs. It’s a car noise pollution. battery that