TES is a professional instrument manufacturer dedicated to all kinds of hand held equipment. Our goal is to provide top quality products to fit in each customer's needs. Our company was founded in 1988. Through we had built up a lot of designing know-how in the first two years in that specific area, we decided to upgrade our products line to high end digital testers. In order to provide the top quality products, the SMT equipment and fully automatic assembly lines were quickly adopted in the company. With determination and efforts, our focus of products line has been gradually shifted to top quality digital testers. Because of the increasing population of personal computer, we had implemented data recording and computer linking capability on several high end products. And we also began to provide environmental monitoring and medical instrument. Now TES has become a corporation with more than 100 employees. We have an excellent R&D team to develop and design new products and customized products according to the required specifications. Our products are sold all over the world and that makes a big population of happy customers. If you are interested in any of our products or looking for some information, fell free to contact us directly. It will be an honor for us to serve your needs.