The KOBOLD plastic stream meters of model KSM are based on the float standard with the float moving openly without erosion in the measuring tube. The materials are impervious to impact and compressive stresses. Discretionary strung fittings might be fitted on the outside strings indispensably expelled at the finishes. The floats are supplied with incorporated magnets for operation with a bistable reed contact. Its indication point is at the best measurement of the float and standard float meters are supplied with a scale for water (+20x), a rate scale. The measuring tube is accessible in PVDF for administration with profoundly forceful media, in poly-sulfone for less forceful media or in Trogamide for simple water or air applications.