CDN Q2-450X Heavy Duty Thin Tip Thermometer Measurement Range: -40 to +450F/-40 to +230C NSFCertified; BioCote antimicrobial technology; member of the ProAccurate professional line 1.5 mm thin tip with 2.75"/7.0 cm stainless steel stem 6 second response One-button field calibration; 5-year limited warranty