For on-line viscosity measurement and control, Brookfield rotational viscometers provide accurate and repeatable data, which correlates to laboratory tests if necessary. AST-100 Advanced Sensor Technology VTA Pneumatic Viscosel® VTE Electrical Viscosel® TT220 Probe TT100® In-Line Viscometer STT100® Sanitary In-Line Viscometer TT200 Flange Mounted Viscometer High Pressure PVS Rheometer