VWR 12620-942 Incubating Mini Shaker W/ Nalgene 20-Slot Tube Rack & Cable AS ISThis item is sold AS IS. No returns or exchanges are accepted. Condition For parts or not working Description Unit powers on, heats, and shakes as expected. However, when set to the maximum speed of 1200, the shaker vibrates unusually rough and produces a metallic noise. For this reason, we are selling the unit AS IS for parts repair as a non working or incomplete unit. We have not tested inspected any further, item may have unknown issues we are not