Place of Origin: Anhui, China (Mainland) Brand Name: OEM or Exact Model Number: 213AB Item name: industrial temperature gauge OEM Service: Accept Free samples: Available Certificate: ISO & KS Case: stainless steel Bezel: stainless steel Window: Glass Stem: stainless steel Connection: stainless steel Temperature range: -40?-0-500? Normal Size: 2.5",3",4",6" Temperature Range: -40+60C to 0-600C Accuracy: ±1%,±1.5% Operating temperature: -20°C to +60°C Case: Stainless steel Bezel: Stainless steel Spring: Bimetal Connection: Stainless Steel Movement: Stainless Steel Dial: Aluminum Pointer: Aluminum Window: Glass Thread: 1/4", 3/8",1/2";PT(BSPT,ZG),BSP(G,PF),NPT etc. Gaskets Filling cap: Nitrile or Silica gel