Mercury Bottle

Demonstration type, fully enclosed in a transparent synthetic case for demonstration. 100 mm coated dial reads from 28 to 32 inches and 950 to 1040 millibars, air tight sealed all around, pressure rubber bulb provided to force the movements, for educative demonstration.

Jolly Air Thermometer bulb of mounted on a wooden frame that can be fixed at three places – up, middle , & down on the stand.