The product is suitable for harsh and corrosive environments, measuring non viscous, non caking, and slightly corrosive gas and liquid media. There is a safety partition designed inside the table to protect the safety of the observation surface. The back is equipped with a pool pressure back cover to release the internal pressure caused by the rupture of overloaded elastic elements, enhancing the safety of personnel and facilities. Mainly used in industries such as petroleum, chemical, metallurgy, power, food, medicine, environmental protection, machinery, and shipbuilding.