Fortin's Barometer

Fortin's Barometer Phy:004  A superior standard mercury barometer suitable for altitudes upto 600 meters. The barometer has a nominal bore of 7mm. graduated scales covering 675 to 810mm.Hg and 26 to 32 inch Hg. The scale of are screw fastened to metal frame at the top of the tube. A vernier reading 0.05mm Hg. and 0.002 inch Hg. provided with an adjustable knob is mounted between the two scales. The reservour has a standard type of adjustment screw and index, and the barometer fitted with - 10 to 50 deg. C thermometer mounted on a polished base.