Precisoinary Instruments is a scientific research equipment company.  Its flagship product, the Compresstome series of tissue slicers, allows scientists section thin slices for electrophysiology, immunohistochemistry, and tissue culture.

With its patented compression technology, it vastly improves upon the existing Vibratome technology by making the tissue easier to section in all cases.  This allows the Compresstome to section tissue faster and product better tissues for experiments.