Magnetic Stirrer Plate Shape Round Plate Dia 3.7 in Plate Material Glass Load Capacity - Metric 4 L Speed Range 100 to 1500 rpm Number of Stirring Positions 4 Voltage 100 to 240 Display Digital Amps 0.38 A Watts 4 W Includes Timer Yes Operating Temp Range 5 Degrees to 40 Degrees C Overall Height 1.5 in Overall Length 4.3 in Overall Width 4.3 in Plug Style - Lab Equipment Standard Variable Speed No