The TurBiScat monitors turbidity in liquids, optional also the (beer)colour in EBC. The combination of Hastelloy and sapphire in a sealless design allows operating the unit in practically all process applications. Turbidity measurement is done with colour compensation. Window fouling is monitored, compensated and can be checked using an intelligent anti-fouling control. Calibration is easily done using a secondary reference standard. The electronic section can be quickly removed from the sensor head using a quick lock, no tools are required.