Hot Plate Stirrer Plate Length 4 in Plate Width 4 in Plate Shape Square Plate Material Ceramic Load Capacity - English 9 lb Load Capacity - Metric 4.0824 kg Overall Height 5 in Overall Length 7.9 in Overall Width 6 in Number of Stirring Positions 1 Variable Speed Yes Speed 100 to 1200 rpm Auto Shutoff No Includes Timer No Voltage 120 0.25 A Amps 20 W Watts Resists Non-Acidic Water Base Liquids Standards CE TUV