Bimetal thermometer,all stainless steel,adjustable angle type,instruments glass,hermetic,with recalibration screw,1% accuracy Bimetal Industrial Thermometers, 3",4",5",6" dial,all stainless steel,instrument glass,hermetic,adjustable angle type, 1/2"NPT or 1/2"BSP connection,with recalibration screw,±1%,range:-40~+1000F.