The 8400 Series Electronic Tachograph is the most reliable tachograph of all time.

This tachograph is based on a microprocessor and uses high quality electronic components. When used correctly, this combination of components ensures high efficiency and reliability of the tachograph. The device is designed in accordance with the legislation of the EU countries (km / h measurement system).

Basically, a tachograph is a recording speedometer combined with a clock. The clock not only indicates the time, but also serves as a tool for the correct orientation of each installed chart disc.

The distance traveled is recorded on a seven-digit odometer with an accuracy of 0.1 km. The driver must use the operating mode selector knob "1", and his partner (in the case of working in a carriage), respectively, the handle "2".

Above the knobs for switching the driver's operating modes, there are three symbols with the designation of the modes: work, readiness, break or rest. The required mode is set by turning the operating mode selection knob.

Electronic-mechanical tachographs Stoneridge 8400 in the design are made as a round speedometer, and are installed in place of the speedometer. 8400 series tachographs are available in various versions: 12 or 24 volts, 125 km / h, 140 km / h and 180 km / h, 1 or 2 drivers, four pen versions to record rpm and events available.

The electronic tachograph of the 8400 series is installed on cars of such well-known manufacturers as: Scania, Mercedes, Man, Vovlo, Renault, DAF and others.