Chengdu Tianjin Instrument Co., Ltd. was established in 2000. For a long time, the company has adhered to the core values of people-oriented, innovation, integrity, and win-win. Consistently pursuing a professional brand image of high quality and high technology, providing customers with better products and services. In 2001, the M2000 relay protection tester was launched and was the first to propose a three-year free warranty and lifelong maintenance nationwide. In 2002, the M2000 relay protection tester was approved by the Ministry of Science and Technology and received support from the National Innovation Fund for Small and Medium sized Enterprises. In 2003, it was rated as an excellent entrepreneurial enterprise in Chengdu. Starting from 2004, the company began to explore international markets. In 2005, the company opened up in countries such as India, Thailand, Indonesia, and Saudi Arabia, exporting more than 70 sets. In competition with similar manufacturers internationally, the company stood firm and won a good international reputation. In 2006, it was rated as a major taxpayer by Chengdu High tech Zone, and the company's institutional construction has made significant progress. In 2008, the research and development, production, and sales of MF3000 optical digital relay protection tester were completed. It is the first optical digital relay protection tester product in China to pass the IEC61850 protocol testing of State Grid Corporation of China. In 2013, the research and development, production, and sales of the MP3000F digital analog integrated relay protection tester were completed. In 2015, the research and development, production, and sales of the TMU-1000 merged unit tester were completed. Since 2011, it has consistently ranked among the top in sales and has also been awarded the title of major taxpayer in Chengdu High tech Zone. In 2019, the company successfully launched the TS200 relay protection automatic testing system and the TS210 intelligent remote motor automatic testing system. The company has the ability to produce over 1230 sets of various equipment annually and has achieved economies of scale. The excellent performance and after-sales service of our company's products have gained a good reputation among users.