EnviroTech has successfully installed two U-Tow marine data loggers on Chinese research vessels. These towed vehicles use two ESM-1 controller boards designed and supplied by BitBox

The elevator fins are driven by intelligent stepper motor drives attached to the unique serial peripheral system (SPS) of the ESM-1.

BitBox modified the shipboard EnviroTech software to work with the ESM-1 controllers over a 600 metre cable.