1.Steel Case bimetal Thermometer temperature gauge 2. 50--100mm Dial Size 3.Brass Connection & thermowell 4. CE ROHS Pressure Gauge/Manometer SpecificationTemperature Gauge/Thermometer SpecificationSizes of Case:2"/50mm, 2.5"/63mm,3"/75mm, 4"/100mm,6"/150mm2"/50mm, 2.5"/63mm,3"/75mm, 4"/100mm,6"/150mmCase:Stainless Steel 304Stainless Steel 304,steel case with chromed ringFluid filled:Glycerine, ...