These thermometers are ideal for laboratory, field, and process measurements. Use to quickly verify temperature. Typical response time is 30 seconds for 99 percent of new reading. Thermometers have a 304 stainless steel penetration stem. All models include a protective case with pocket clip and a battery. Thermometer features a sealed case?ideal for use with liquids. It has degree >F/degree >C switchable ranges, a min/max button, and a one-second display update. Use on/off button to conserve battery life.