An electrochemical sensor, and method for producing a electrochemical sensor

The invention relates to an electrochemical measuring probe with a solid electrolyte, a first electrode exposed to a gas to be measured and a second electrode exposed to a reference gas, in which the electrodes are preferably arranged on opposite sides of the solid electrolyte. At least one of the electrodes (16, 20) is shaped (24) on its side (22) exposed to the gas to be measured or the reference gas.