STT Fairy Series is a cooperative research and development project between STT and Shanghai Jiaotong University. The project was officially launched in 2017, mainly focusing on logic and algorithm of sensor. After four years of research and development, it was finally fully finished in June 2021.

STT has independent intellectual property rights and patents of STT Fairy Series, and has also been certified by TUV quality management system. The STT Fairy series mainly includes five products, STT-100, STT-200, STT-201, STT-300 and STT flow tester.

The tester is widely used in many kinds of industry production fields such as mobile phone, medical equipment, security equipment and so on. With the increasing requirements of the industry for leakage testing, our market scope is becoming wider and wider. STT Fairy Series can reach the IP68 standard and the accuracy can reach 0.1pA. It can meet the different needs of customers and provide high-quality leakage testing solutions to customers.