The PMS-1000i microplate shaker provides reliable, regulated shaking for two or four microplates. The PMS-1000i can be adjusted to suit the application: gentle shaking to ensure that the well contents are not ejected, or more vigorous agitation for effective aeration across the small surface area of each of the wells.rQuick and easy screw fitting of any standard-depth 96- or 384-well plate.rContinuous or timed operation, with automatic switch off.rEasy-to-use integral electronic timer ensure accurate count-down and repeatability of time-sensitive incubations.rHolds two or four microtitre plates. Platform for two microtitre plates supplied as standard. Platform for four plates (GRA-0MPP-4) available as an option.