Magnetic stirrer with four individually controllable stirring positions for a variety of routine heating and stirring tasks. Suitable for stirring volumes of up to 15 litres per stirring position. Stirring positions made of aluminium alloy ensure high temperature homogeneity and optimum heat transfer over the entire surface. Four illuminated indicators signal when the heating is on. The symbol stays on when the temperature of the plate is above 50 °C, even when the device is switched off. The SpeedServo™ torque compensation keeps the speed constant even if the viscosity changes.