Features: 3" knob, 50 to 550 FZe stainless steel housing2.5" long stemAdjustable for precision tuning/recalibration1/2" NPT thread, can be mounted in 1/2" female NPT thread Thermometers feature an easy-to-prepare white dial and stainless steel housing. Material:【Copper Nickel-plated Shell】- The surface hardness is greatly improved, the corrosion resistance and wear resistance are better, and the service life is prolonged【Clear Disc】- Exquisite screen printing on the disc with transparent scale【Stainless Steel Protective Tube】- 304 stainless steel has the advantages of rust and corrosion resistance, high temperature resistance, environmental protection and sanitation, and long service life. Specifications:Disc Diameter: 83mm/3.27inNut Diameter: S25*10mm/S1*0.39inch Thread Installation Size: 1/2" NPT Rod Length: 70mm/2.76" (Full Back Length)Rod Diameter: 6.3mm/0.25" Measuring Range: 50 - 550°FFew Installation Method: Back Mount, You Can Mention Their Level: 2.0Temperature Measurement Rod Material: Stainless SteelThermal Response Time: le; 40 Seconds Protection Level: IP55Package Included:1 * Grill Smoking Pit Thermometer