In a range of models from basic to advanced, these rotational viscometers offer a universal AC power supply, repeatability of ±0.2%, accuracy of ±1.0% full-scale, push-button control and setup with easy-to-use menu system, and under/over range audible alarm. They feature 316 stainless steel spindles and a menu of 10 language options. The advanced models store up to nine user configurations, have time-to -torque, time-to-stop, ramp, and multistep program features, and a USB output. The most advanced model includes software to control flow curves, graphs, and database references through a PC.