Bel-Art, H-B DURAC Liquid-In-Glass Maximum/Minimum Thermometer; -35 to 50C (-30 to 120F), Organic Liquid Fill

Features a U-shaped thermometer, mounted on a plastic casing, with metal floats at the top of each column. One float remains at the maximum temperature while the other float remains at the minimum temperature. Reset the floats by pushing the reset button. Waterproof.

Maximum/Minimum thermometers are for use in high moisture or wet environments including green houses, sample prep areas and water treatment facilities.