... train station, subway, gymnasium,important government office,boarder,and seaport Liquid Scanner -- Model: ST1000* Identify chemical composition of liquids, ... canIron, aluminum, plastic, glass, porcelain, china, pottery.Identify dangerous liquid More than 30 types: Gasoline, kerosene, diesel oil , hydrochloric acid ... / 5% to 95% humidityPower Voltage/ frequency AC180-240V(50/60Hz)Power consumption10W