The Vectoflow keel probes have a specially optimized inlet geometry that can still measure total sizes to within 1% even at flow angles of up to 60°. With the temperature keel probes, different thermocouple types can be integrated and also calibrated (recovery factor). Kiel probes can be ordered as single pieces or in combination on a probe rake. Individual design options are opened up by the additive manufacturing process, which is also used in the production of keel probes.