Thermometers are essential for taking temperatures in the lab. These thermometers have a white backing to make graduations easier to read and they are approximately 6" (150mm) long. Our thermometers are filled with alcohol instead of mercury for safety purposes and come in a protective plastic tube with a no-roll sleeve. This thermometer is total immersion and has a range of -10°C to 110°C and has a white back. Pack of 10.