Speed meter for cold water with multiple jets. Counting is done directly by means of numbered rollers in the cold water meter. The meter features a measuring chamber with double alignment of tangential holes for jet distribution. The transmission of movement of the immersed part is contained in a special magnetic capsule with protection against external magnetic fields. Maintenance of this meter is extremely simple. It has a long service life, thanks to the very limited number of turbine rotations and the quality of the materials used.