Yuyao Shuanghe Electron Instrument Co., Ltd. is a professional manufacturer of all kinds of thermometers, hygrometers, densimeters, blood alcohol testers and digital clinical thermometers. Established in 1979, we have more than 30 engineers and technicians focusing on R&D and quality control. Our workshop covers an area of 6,000 square meters and 250 specialized workers can provide good products and service. Our company is well-known for good quality, quick service and competitive prices. The products exported to USA, Europe, Japan, Korea have obtained CE and ISO9001 certifications. If you need any further information of our company or products, or have a custom OEM order to place, please contact us with your detailed inquiries. We look forward to cooperating with you and satisfying your demands.