Thomas Traceable Digital Thermometer, 4-3/4" Stem, -67 to 300 degree F

Range is -67 to 300 degree F. Wide temperature span combines the ranges of more than 90 different mercury thermometers. Place probe in a water bath and enjoy digital resolution to 0.1 degree and an accuracy of +/-1 degree C between -20 to 100 degree C. Ultra model accuracy is +/-0.4 degree C at tested points. Stainless-steel and plastic construction (no glass and no mercury) makes it the best and safest lab thermometer ever designed. Ideal for use in soil, cuvets, test tubes, food products, incubators, biomedical reagents, and petroleum hydrocarbons. Traceable to NIST for accuracy: To assure accuracy an individually serial-numbered Traceable Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). Lightweight for portability: Large, bright 3/8" high LCD (liquid crystal display) is 20 times more readable than eye-straining guesses at pointers or mercury positions. Readings are updated every 10 seconds. Supplied with a protective case, silver-oxide battery, and Traceable Certificate. Unit dimensions are 4-3/4" stem length, stem diameter of 0.19 inch, and 1-1/2" dial diameter. Weight is 1-1/8 ounces.