The headquarters, rue Championnet (Paris 18)
Founded in 1893 by Raphaël Chauvin and René Arnoux, Chauvin Arnoux has had a considerable influence on the development of measurement technology.
A long and prestigious list of inventions, such as the Universal Tester (the precursor of the multimeter) and the ammeter clamp, bears witness to this fact. Throughout the 20th century, Chauvin Arnoux filed more than 350 patents and trade marks.

These last few years have been marked by the gain of some impressive brand names such as Metrix, Pyro-Contrôle, Enerdis, Oritel and Radio Contrôle.

The company was founded by René Arnoux and Raphaël Chauvin. The current Paris premises stands on the original site.

Invention of the magneto ohmmeter. In 1923, measurement became independent of the magneto's rotation speed.

With André Arnoux, the founder's son, at the head of the company, industrial development takes a leap forward in Paris.

Invention and patent application for the 'Contrôleur Universel', the forerunner to the Multimeter. Despite this patent, the invention was to become copied throughout the world.

Launch of the first industrial needle contact temperature controller.

Invention of the transformer-clamp, the very first current clamp.

Invention of the first exposure meter for photographers, which was to become the exposure meter.
Opening of a factory in Poland, in Warsaw (destroyed in September 1939).

Remote temperature measurement with 'Pyroptique', an optical filament thermometer.

The Cellaphot, an ultra-light exposure meter, is incorportated into the cameras of the day.

Launch of 'Miniascope', the first truely portable oscilloscope. It fits in a briefcase.

Launch of the 'Monoc' multimeter, with single selector switch and scale, considered to be the 'reference' by several generations of electricians.

Creation of the magnetic blow-out ultra-safe cut-off relays.

Opening of the 1st factory in Normandy (France).
Founding of the company Manumesure, the group's service company.
Founding of German subsidiary.

Founding of the 'Construction d'Appareillage' company, to produce professional instruments sold under the 'CdA' brand name by Specialised Distributors.

Launch of the STATOP temperature controller, the reference instrument for several generations of thermal technicians.

Launch of our first digital multimeter.

Opening of a second factory in Villedieu-les-Poëles, Normandy.

Founding of the Italian subsidiary in Lissone (Italy, in the suburbs of Milan).

Creation of a sales company in Boston (USA, Massachusetts).

Opening of a third factory in Vire, Normandy.

Opening of a fourth factory in Normandy, in Pont-l'Evêque, currently the central warehousing facility.

First edition of Contact Actualités, an external information newspaper, later to become Contact Actualités Mesures.

Production of the Hall-effect clamp to measure DC current.

Creation of the North American subsidiary in Dover (USA, New Hampshire).

Opening of the British subsidiary.

Opening of the Spanish subsidiary.

TRIMARAN 1, the first remote-readable and remote-programmable energy meter, supplied to the French Electricity Board (EDF), for industrial consumers.

Merger of Chauvin Arnoux with CdA with the conquest of international markets in mind.

Inauguration in Paris of the new headquarters.

Chauvin Arnoux celebrates its 1st centenary, brings out a new logo and sponsors the Measurement Prize, awarded by the Academy of Science.

The C.A 6411 & C.A 6413 bring about a new concept, instant testing for interconnected earth loops.

Chauvin Arnoux is the first measurement instrument manufacturer in France to be equipped with an anechoic chamber for the measurement of the electromagnetic compatibility of its products.

Opening of the Swiss and Austrian subsidiaries.
Acquisition of 'Normandie Mesures' by Manumesure: Atmospheric pollution testing and dimensional metrology activities.

Takeover of Metrix, France's n.2 leader in hand-held measurement instruments.
Takeover of Pyro-Contrôle from the American company Engelhard.

Buyout of the Chinese company "Puji Wung", integrated into the Chinese subsidiary

Opening of the lebanese subsidiary.

Opening of the swedish subsidiary.

Creation of a commercial structure within the Chinese subsidiary in order to strengthen sales in the Asian market. First Shanghai International Exhibition.

Ouverture du nouveau site industriel du Groupe Chauvin Arnoux situé à Meyzieu près de Lyon.