NIST Traceable Certificate, with supplied High Precision and fast-response to slightest temperature changes. Scientific thermometer is ideal for critical experimental requirements, quality control, and routine measurements.  Unit reads °F or °C at the push of a button.  Expanded-temperature range covers -40.0 to 300.0°F and -40.0 to 150.0°C.  Resolution is 0.1° and accuracy is ±0.2°C.  To assure accuracy, a certificate is provided to indicate traceability to standards provided by NIST.  High precision makes this thermometer ideal for measuring temperatures in cuvettes, gas systems, reagents, chemical solutions, soil, water baths, ovens, incubators, petroleum products, foods and wastewater.  Designed for years of reliable service even in severe lab environments.  Large, 1/2-inch-high digits and bright, high-contrast LCD display make the thermometer easy to read.  Membrane keys provide a splash proof design.  Press the LIGHT key to switch on the red backlighting and read answers in total darkness.  The fast response probe supplied with the unit displays even the slightest temperature change in seconds.    Readings are updated three times a second.  Universal, stainless-steel probe is triple purpose for liquid, air/gas, and semisolids.  Accurate readings with tip penetration of 1/3 inch.  Probe has a diameter of 1/8 inch, length of 6-1/4 inches, and cable length of 4 feet.  Size is 3-1/2 x 5-1/2 x 1-1/4 inches.  Weight is 8 ounces.  Supplied with probe, 9-volt alkaline battery, and Traceable Certificate.