1, circuit and interface design monitoring system should have high reliability, versatility, compatibility and scalability. Key parts or equipment shall be redundant. 2, the monitoring system should be set to the system itself diagnostic software and data redundancy. 3, the central monitoring and management system should be able to live with the same precision measuring instruments simultaneously recorded continuously operating parameters, equipment status of each subsystem. 4, the monitoring system should be equipped with appropriate software in real time transient simulation software of choice for energy-efficient low-cost oxygen plant, stock analysis and gas consumption can be forecast. 1, medical gas dew point sensor accuracy drift should be less than 1 ℃ / Year. The concentration of carbon monoxide sensors -6 th medical oxygen when 10 × 10 how much money, the error should not exceed 2 × 10 -6 th .2, air pressure sensor alarm should be installed in the use of total pipeline valves side. 3. Regional alarm sensor should be set repair valves, regional alarm sensor should not use electrical contacts. In addition to the operating room, anesthesia outdoor, regional alarm sensor should be set up to use the valve in the pipeline region side. The preferred oxygen breathing apparatus, Hebei Ericsson (certified), oxygen supplied by Ericsson Hebei Medical Engineering Co. Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) Hebei Hengshui, a leader in medical device manufacturing equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hebei Ericsson leadership with the staff warmly welcome all inquiries negotiations to create a better future Hebei Ericsson.