The pharmaceutical industry is a part of the chemical industry, the use of acetone, methanol, alcohol and other a large number of dangerous goods, if stored and managed improperly, the possibility of causing an explosion is quite high. Hydrogen sulfide, aldehydes, ammonia and other harmful gases are produced during the processing of raw materials. Serious harm to health. The project uses the ASD5300C, ASD5300 detector and JB-TB-ASD5100 controller to protect the production safety of the pharmaceutical industry.