Ancien contrôleur d’accumulateur , voltmètre-ampèremètre - Measuring instrument - Wood, Brass - 1920-1940

Former accumulator controller, portable voltmeter-ammeter, probably from the early third of the 20th century. Electrical control instrument designed to test batteries and accumulators, equipped with an analog dial graduated in volts and amperes. Beautiful old construction combining a turned wooden handle, a brass structure and contact points, as well as a metal ribbon-wrapped resistance. The system allowed establishing direct contact on the terminals of an accumulator to monitor its electrical state. An old technical instrument presenting a handsome patina of brass, natural wear of the wood and signs of use consistent with its age. Beautiful collectible for enthusiasts of early electricity, scientific instruments, garage equipment, antique automobiles, workshop and industrial heritage.

Highly sought after in the world of industrial design, scientific curiosities, old medical technology, laboratory optics, steampunk, and rare measuring instruments.
Ideal for a collector, industrial loft decoration, cabinet of curiosities, scientific display (theodolite, microscope, sextant, compass)