A honeycomb body, which can be traversed by a fluid, in particular the exhaust gas of an internal combustion engine, at least partially in a through-flow direction, includes a plurality of at least partially traversable cavities that form a honeycomb structure located in a casing. At least one sensor has at least first and second subsections. At least the second subsection extends into the honeycomb structure and penetrates at least part of the cavities. At least the first subsection extends beyond the casing. The first and second subsections are substantially rigid and form an angle other than 180 degrees in a first plane is encompassing the through-flow direction and/or a second plane perpendicular to the through-flow direction. The angled construction of the sensor permits the honeycomb body to have a space-saving construction that includes at least one sensor. A lambda sensor for installation in a honeycomb body is also provided.