1) Bimetal Thermometer applys for industrial process, 2) applys for food processing and wastewater 3) high quality low price Thermometer Specifications Dial1"(25mm),2"(50mm),3"(75mm),4"(100mm),5"(125mm),6"(150mm), dish-shaped CaseStainless steel LensGlass or Acrylic StemFrom 2.5" (63mm) and up AdjustmentRe-zero adjustment screws are available Connection1/4" or 1/2"NPT, back, bottom or adjustable ...