This Comark digital thermometer is color-coded Purple for food allergens. It helps prevent cross-contamination and provide food safety. This thermometer has a temperature range of -58 to 400°f, and can also display Celsius temperatures. It has an easy-to-read LCD readout with one second updates. This thermometer also has an on/off button to help preserve battery life. Color-coded for food safety Purple color is for allergens thin tip, response in under 6 seconds temperature range of -58 to 400F/-50 to 200C accuracy in the food zone: ± 2°f or 1°c resolution: 0.1°F or 0.1°C easy-to-read LCD readout has on/off button 5 inch stainless steel stem has storage sleeve with clip 1.5 Volt battery included NSF listed.