A five position magnetic stirrer that provides precise, controlled, gentle stirring. Choose from two models: the deluxe series features programmable stirring from 1 to 100 minutes "ON" and 10 to 1000 minutes "OFF" plus LCD read-out; the economical series provides many of the deluxe model's outstanding features, but at an economical price. Easily accommodates up to five 1000 mL vessels at one time. Stirring speed on both models is: 1 to 100 RPMs