This Easy-Read thermometer has a range of -20 to 150°C. Features environmentally safe non-toxic, non-hazardous, biodegradable Enviro-Safe liquid EnviroKleen certified by ChemTel, an independent laboratory, and has the same accuracy as similar mercury-filled thermometers, but unlike mercury-filled thermometers these are 100% environmentally safe . The Enviro-Safe liquid is dyed black against yellow back glass offering the highest contrast combination for ease of readability and prevention of reading errors. Comes with a detailed Calibration Report stating corrections to one-tenth of the smallest division and an individual serial number. Tested and certified in our exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST and DKD/PTB. Ideal for use in chemical laboratories, universities, scientific institutions, food and beverage processing, petrochemical laboratories, pharmaceutical industry, medical industry, manufacturers, dairies, breweries and distilleries. Individually packaged in Safety-Pak packaging to prevent breakage. Made in USA. Thermometer Fill Type: Enviro-Safe. Back Glass: Yellow. Range: -20 to 150°C. Accuracy: 1°C. Divisions: 1. Calibration Points: 0, 60, 120°C. Length: 305mm (12in). Immersion: 76mm (3in). Per Each. HB Instrument #: 30515C.