A U-shaped liquid-in-glass thermometer that marks air temperature extremes with sprung markers. Reset by using a magnet to move the markers to the liquid menisci in each arm.
Six's thermometer
1
2011-05-13 15:32:05.0
SDN:S04::S041063
SDN:S04::S041063
maximum minimum thermometer
2011-05-13 15:32:05.0
false
accepted
SDN:S04::S041063
1