The greatest feature of the self-recording CTD is that it becomes an independent device by installing a battery, and the acquired measurement values can be recorded in the main unit. In addition, as shown in Figure 5, the relatively small size and light weight of the self-recording CTD has the advantage that it can be operated by a small number of people even in rough weather to some extent. This feature can also be utilized for long-term observations by incorporating it into a submarine observation system called a mooring system.
Click here for details → self-recording type CTD
