Dräger Safety Ag&co. Kgaa

Andreas Huth

Andreas Nauber

Stefan Morley

Robert Kessel

Matthias Studer

Gero Sagasser

Ulrich Köhler

Kathleen Leahy

A device and a process are provided for recognizing a correct use of an alcohol measuring device by a test subject. At least one alcohol measuring device is provided with a signal transmitter, an analysis and control unit and a camera unit. An image field of the camera unit is divided into an inner image field area and an outer image field area. The inner image field area detects at least the face area of the test subject. The camera unit records changes at a boundary between the inner image field area and the outer image field area. A signal sent by the signal transmitter in the inner image field area can be detected by the camera unit.

Device and process for recognizing a correct use of an alcohol measuring device

A gas-measuring device has an electrochemical sensor and features such that the readiness for use is guaranteed for a determined period of time. A status display (), is activated by the evaluating circuit () of the gas-measuring device. The status display () displays the degree of depletion of the sensor.

Gas-measuring device with an electrochemical sensor

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Lübeck, Germany

Andreas Huth