Lotox Thermometers – 76mm Immersion, -20/110C x 1.0 Divs-This range of thermometers with an environmentally friendly filling offers the ideal substitute for the traditional mercury filled thermometers up to 330C. Low toxic blue or brown filling is easy to read Accurately calibrated against traceable standards. Temperature ranges up to 330C. Blue non-roll top and safety suspension ring . Clear permanent markings