Alcohol-measuring device with fast operational readiness

An alcohol-measuring device comprising:

• a mouthpiece designed to enable a test subject to release breathing air into the mouthpiece;
• an electrochemical sensor in fluidic connection with the mouthpiece and designed to measure alcohol in the breathing air of the test subject, wherein the electrochemical sensor has a front side and a rear side;
• at least two heating elements, wherein at least one heating element is arranged on the front side of the sensor and at least one heating element is arranged on the rear side of the sensor;
• and
• a control unit electrically connected to the at least two heating elements in order to supply electrical energy for the heating elements, wherein:
• the control unit is set up to heat the at least two heating elements each to a desired temperature;
• and
• the control unit is electrically connected to the electrochemical sensor in order to determine the value of the alcohol concentration in the breathing air of the test subject.