Durac® Plus ™ precision thermometers are made with permanently fused markings and fractional degrees to provide precision and ensure accuracy.Mercury free, contain blue organic liquid against lead-free white back glassIdeal for use in chemical laboratories, universities, scientific institutions, food and beverage processing, petrochemical laboratories, pharmaceutical/medical industry, manufacturing, dairies, breweries and distilleriesTraceable to NIST, individually serializedInclude multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy and TraceabilityTested and inspected by our USA quality teamShould you require an individual Thermometer Calibration Report, factory calibrated thermometers or custom calibration services are available.