Zhongshan Shangfang Instrument & Meter Co., Ltd., founded in 1998, specializes in the development and production of microcomputer-based temperature and humidity control products. Known for simple design, ease of use, strong anti-interference, diverse structures, and reliable performance, its products are widely used in refrigeration, thermal insulation, HVAC, high-temperature heating, and food machinery. The company follows the principles of quality, innovation, management efficiency, and service reputation, and its products are certified with UL, TUV, CE, CQC, RoHS, and ISO9001:2008, ensuring long-term stable quality.