Thermo Scientific SP131635Q Cimarec Digital Stirring Hot Plate with 10.25" x 10.25" Ceramic Platform, 16.25" Length x 11.38" Width x 4" Height, 5 to 540 Degree C, 120V/60Hz Temperature range of ambient to 540 degrees C is adjustable in 5-degree increments White ceramic top plate for fast heating and resistance to chemicals and scratches Digital display and temperature regulation by microprocessor with knob control for consistent, repeatable temperature settings Speed range of 60 to 1,200 rpm Hot top warning light helps prevent accidental burns