Antique French Galvanometre (galvanometer) made in Paris. A galvanometer is an electromechanical instrument used for detecting and indicating an electric current. A galvanometer works as an actuator, by producing a rotary deflection, in response to electric current flowing through a coil in a constant magnetic field.Size: diameter: 4.25 inches; depth 2 inches. Weight: 1.4 kg (allow 2 kg once packed). Condition commensurate with age and use - various superficial marks & scratches and some discoloration to inside card scale but all part of its charm and character. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "squashoclock" and is located in this country: GB. This item can be shipped to United Kingdom.