3rd version

　So far, I had many chances to deploy data logger, such as current meter, nephelometer, and temperature meter and so on, in the sea at Okinawa, Palau and Thailand. 1st version used in Okinawa was assembled by iron tube and clamp, then so heavy and big one. In Thailand, local steel metal worker made us sophisticated pyramid-shaped frame in economic price. Probably that frame might have been flown away somewhere in the Tsunami attack last December. Then this year, I gave birth to 3rd version frame in Hawaii! I fabricated it using frame of chair, which was selected in Wal Mart. This guy is pretty good. This has compact size but stable shape and somewhat heavy weight, which can stand against strong current at the sea bottom. And it is mobile frame. I can easily convey it by bike. It’s highly improved compared with 1st version!