Has right-angled prongs, with the sensor perpendicular to probe axis.
The sensor is turned 90°, this makes these probes suitable for boundary layer measurements, e.g. in pipes, as well as, for mean flow velocities and flow fluctuations measurements in places that are not readily accessible, e.g. in pipes. Mounts with the probe axis perpendicular to the direction of the flow.
Has a thin coating, can therefore only be used in gases.