The KCH Shaker MTS4 microplate shaker will simultaneously agitate up to 4 microplates on a 12 x 9 platform.  This simple IKA microtiter plate shaker can be controlled through the upfront analog dials.  These dials include a timer for up to 30 minutes in three-minute increments or a continuous mode and a speed control dial. The shaking motion is orbital, ranging between 0-1100 RPM and an orbit of 3 mm.