Liquid expansion thermometer -10 °C ... +420 °C

analogsurface-mountindustrial

filled system measuring capillary with lens front division: 1 °C calibrated for total immersion available with blue (mercury) or red (alcohol) filling. Thermometers containing mercury are not wetting like thermometers with alcohol filling. The alcohol filling may deposit at the glass capillaries. Thermometers with mercury filling hence measure more exactly than with alcohol filling. In general, mercury thermometers measure reliably and provide more accurate results. if mercury thermometers break, the filling must be collected immediately without leaving any residues. Otherwise, the mercury evaporates at room temperature and the vapour is toxic. thermometers with mercury filling may not be used and sold within the European Union