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 ... SteelThreads:1/8",1/4",3/8",1/2",BSP,NPT,G1/2…,M20*1.5,M8*1…1/8",1 ... /4",3/8",1/2",BSP,NPT,G1/2…,M20*1.5,M8*1…Accessories:3 holes ...