Karishma Instruments Pvt. Ltd. Supplies Lab Viscosity Meter. Karishma Instruments Pvt. Ltd. Manufactures Laboratory Turbidity Meter, On-line Turbidity Meter, Fluorescence Meter, and Absorption Meter etc. The Lab Viscosity Meter is used for Polymers, Oils, Fuels, Cements, Resins, Gels, Emulsions, Cheese, and Sugar etc.