"These thermometers are ideal for laboratory, field, and process measurements. Use to quickly verify termperature. Typical response time is 30 seconds for 99% 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 degF\/degC switchable ranges, a MIN\/MAX button, and a one-second display update. Use ON\/OFF button to conserve battery life."