Turtle Industrial Co., Ltd. is a group of engineers that has been engaged for many years in the development of various control and measurement devices and systems utilizing electronic circuit technology and computer technology. Anticipating that the standard interface for personal computers would become USB, the company quickly began developing measurement and control peripheral devices with USB interfaces, which are sold at high performance and low prices. Additionally, by applying analog circuit technology, they have commercialized various amplifiers, filters, power supplies, and other products, contributing to measurement and control in this field as well.