Phosphine is 1 colorless, highly toxic, flammable gas that is heavier than air and smells like smelly fish. Harm to human body: when the concentration in the air is 2~4mg/m3, the smell can be smelled; The concentration above 9.7mg/m3 can cause poisoning by 550~830mg/m3 and contact with 0.5~1.0 Death occurs in hours, 2798mg/m3 can be rapidly fatal. The human oral LD100 of PH3 is about 40 mg/kg. Phosphine inhaled from the respiratory tract, first stimulate the respiratory tract, causing mucosal congestion, edema, alveolar congestion, exudation, severe punctate extensive bleeding, alveolar full of bloody exudate, which is the pathological basis of acute pulmonary edema. Phosphine is absorbed into the whole body through the alveoli, affecting the central nervous system, heart, liver, kidney and other organs.

But phosphine is widely used in pest control and killing in grain depots and tobacco warehouses. Due to the highly toxic nature of phosphine, the national standard requires that pesticide residues be tested in grain depots and tobacco warehouses after phosphine is used. It is for this reason that Shenzhen Yiyuntian Electronics Co., Ltd. has developed a residual phosphine detection and alarm system.

the residual phosphine detection and alarm system of yiyuntian company includes gas detection and detection unit, signal transmission and acquisition unit, display unit (centralized display on the alarm control host), monitor, control unit, alarm unit and controlled equipment unit (such as fan and solenoid valve).

Shenzhen Yiyuntian Electronics Co., Ltd. was established in early 2006. It is a national high-tech enterprise integrating design, research and development, production and sales. Can provide toxic and harmful, flammable and explosive gas detection alarm, gas analyzer, gas online monitoring pretreatment system, TVOC online monitoring system, differential ultraviolet spectrum gas analyzer, laser gas analyzer, environmental protection safety gas monitoring cloud platform and other products.

At present, Yiyuntian has passed ISO9001 quality management system certification, IS014001 environmental management system certification and CCEP China environmental protection product certification. And obtained the corresponding product explosion-proof certificate, CPA type approval certificate, CMC measurement license, appearance patent certificate, software copyright registration certificate, etc. The company's products have been widely used in petroleum, chemical, gas transmission and distribution, warehousing, municipal gas, fire protection, environmental protection, metallurgy, biochemical medicine, energy and power industries, and have been unanimously recognized by customers. For more typical gas monitoring system solutions, please contact Shenzhen Yiyuntian Electronics Co., Ltd.