This Easy-Read® closed metal case pocket thermometer has a range of -10 to 110°C and offers convenience and portability. This total immersion thermometer is 160mm (6.3in) in length. It 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. Each thermometer is tested and calibrated in H-B Instrument's exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST and DKD/PTB. Includes a Statement of Accuracy, in multiple languages (English, French, German, Italian, Portuguese and Spanish) indicating accuracy traceable to NIST and DKD/PTB. Ideal for ffieldstudies, waste water treatment and any “on-the-go” applications. Accurate and safe. Individually packaged in Safety-Pak™ packaging to prevent breakage. Made in USA. Thermometer Fill Type: Enviro-Safe®. Back Glass: Yellow. Range: -10 to 110°C. Accuracy: 1°C. Divisions: 1. Length: 160mm (6.3in). Immersion: Total.