Thomas PTFE Frio-Temp Precision Liquid-In-Glass Verification Refrigerator Thermometer, -5 degree to 15 degree C Range

Frio-temp verification thermometers for sample temperature measurement within freezers, refrigerators, incubators or ovens without introducing contamination. These thermometers are filled with environmentally safe non-toxic, non-hazardous, biodegradable enviro-safe liquid, envirokleen certified by chemtel, an independent laboratory comparable in accuracy to mercury filled thermometers, but are 100 percent environmentally safe. Accompanied by a statement of accuracy indicating accuracy traceable to NIST and DKD/PTB. Contain multi-language instructions (english, french, german, italian, portuguese and spanish). Individually packaged to prevent breakage.