Established in 2006, Nanjing Helm Sci-tech Co., Ltd. is specialized in R&D and production of pressure measuring and controlling instruments. It has introduced the internationally advanced production technology, equipment and process as well as strict product quality standards and ODM cooperation concept to China, so as to manufacture and sell HELM pressure / differential pressure / liquid level sensors and transducers in mainland China. Our products have been fallen into six categories totaling hundreds of specifications in dozens of series. Main products include: HM10 High-accuracy Pressure Sensor,HM20 General-purpose Pressure Transmitter, HM21 Liquid Level Transmitter,HM21F Anti-lightning Liquid Level Transmitter,HM21R Anti-corrosive Liquid Level Transmitter,HM22 High-accuracy Pressure Transmitter, HM23 Special Pressure Transmitter for Air Conditioner, Refrigeration and Compressor,HM23Y Special Pressure Transmitter for Oilfield and Mining Well,HM24 Economical Pressure Sensor and Transmitter,HM25 Industrial Pressure Transmitter,HM26 Ceramic Capacitor Pressure Transmitter,HM27 Vacuum Pressure Transmitter,HM28 Sapphire Pressure Transmitter,HM29 Digital Pressure Transmitter,HM30 Micro Differential Pressure / Air Pressure Transmitter,HM31 Differential Pressure Transmitter,HM40 Intelligent Digital Pressure Gauge, HM41 Intelligent Digital Pressure Switch, HM50 Anti-corrosive Pressure Transmitter,HM60 Anti-explosive Pressure Transmitter,HM70 Hygienically Flat-membrane Pressure Transmitter,HM80 High-temperature Pressure Transmitter,HM90 High-frequency Pressure Transmitter,HM91 Micro Pressure Transmitter,HM100 Integrated Temperature Transmitter, and HM3051 Capacitance Pressure Transmitter. Our products have been extensively used in aerospace, military, petroleum, chemical, power station, automatic equipment manufacturing, medical, pharmaceutical and food industries etc. The Company has rapidly developed since its establishment so that some of product series have been produced in a large-scale way, with unique features different from the others in the industrial flow control field. In the spirit of "Making pioneering efforts to create a world-class enterprise through continuous improvement", we have been market-driven and developed with technology. By insisting on the service commitment of "Keeping integrity forever" and adhering to the concept of "Communication and cooperation for common progress", we strive to synchronously improve with the international advanced technical level and make common development with pressure measurement and control enterprises in China.