1.80mm SS CASE Bimetal Thermometer Temperature Gauge 2.Stainless Steel Bottom/ Back Connection 4 ... .CE ROHS Pressure Gauge/Manometer SpecificationTemperature Gauge/Thermometer SpecificationSizes of Case:2"/50mm, 2.5"/63mm,3"/ ... petroleum,petrochamical,power,pharmaceutical,chamical engineering industry.Compared to the glass thermometer,it is more convenient and inexpensive.And it can ...