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Simple to use & Easy to read. A glass tube mounted on polished wooden board. Fitted with -10 to 50 deg. C thermometer. A superior standard Fortin mercury barometer suitable for altitudes upto 600 meters. The barometer has a nominal bore of 7 mm Scales covering 675-810 mm Hg and 26-32 € Hg are screw fastened to metal frame at the top of the tube. A vernier reading 0.05 mm Hg and 0.002 € Hg provided with an adjustment knob is mounted between the two scales. The reservoir has a standard type of adjustment screw and index. Fitted with -10 to 50 deg. C thermometer, mounted on a polished wooden base. Complete with working instructions.