The smallest of the Orbit™ Digital Shakers, the M60, P2 and P4 feature variable speed across a broad range, making them useful for a variety of applications. Both time of operation and shaker speed are set and displayed digitally, with their values shown on the large 3 digit LED. Parameters are selected with an easy turn knob. A sturdy base encloses the motor for quiet, vibration free operation. All three models can be used in temperature controlled environments. Their compact size makes them ideal for incubator use. Large capacity - process 60 microtubes or 4 microplates Resuspending, homogenizing, mixing or vortexing Sturdy, compact construction Suitable for cold room or incubator use Orbit™ M60 Despite its small size, the Orbit™ M60 can process up to 60 microtubes at one time. The platform is removable to function as a transfer rack or workstation. 1.5/2.0 ml tubes are accommodated directly while smaller tubes can be used with adapters, sold separately. Orbit™ P2 and Orbit™ P4 These vortexers accept all sizes of standard microplates, including deep well plates. Retaining springs on the contoured steel platform hold samples in place. The Orbit™ P2 holds two microplates while the Orbit™ P4 holds four.