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 °>F/°>C switchable ranges, a min/max button, and a one-second display update. Use on/off button to conserve battery life. Waterproof/shockproof thermometer replaces hazardous mercury units. Stainless-steel probe is resistant to most laboratory chemicals. Wide range covers 99 percent of the lab's routine temperature measurements: -58 to 572°f and -50 to 300°c. Resolution is 0.1° from -20 to 200°; 1° outside this range. Accuracy is ±1°c between 0 and 100°c. Reading updates every second. At the touch of a button, memory recalls highest and lowest temperature readings over any time period. Reading is updated every second. Solid-state construction eliminates dangers inherent in breakable glass and toxic mercury thermometers. Includes NIST Cert.