H-B Easy-Read General Purpose Liquid-In-Glass Thermometer; 20 to 230F, 50mm Immersion, Environmentally Friendly (B60300-0200) Black liquid against lead-free, yellow back glass for easy readability and fewer reading errors Ideal for use in chemical/petrochemical laboratories, universities, scientific institutions, food and beverage processing, pharmaceutical and medical industries, dairies, breweries and distilleries Manufactured and tested by our USA quality team Traceable to NIST Includes multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy and Traceability, non-roll fitting and individual serial number