TENGLONG SEALING PRODUCTS MANUFACTORY,Website: , YUYAO          YUYAO SUNPASS INTERNATIONALUNIVERSALLY ADJUSTABLE BIMETAL DIAL THERMOMETERDescription:Indication Range:  -40C up to +600CCase Nominal Diameter :2 1/2\"; 3\"; 4\"; 5\"; 6\"Case Material:   Mild Steel; Stainless SteelImmersion Tube Diameters:Φ6mm to Φ12mmImmersion Tube Length:2 1/2\" to 24\"Connection :Center Back Male ConnectionInlet Thread:1/2\"; 1/4\"; 1/8\"; 3/8\"; BSP, BSPT NPT or according to customers requirements.Material For Immersion Tube and Thread:Brass, Steel, Stainless SteelAccuracy:1.6-1%