Werner Heisenberg (1901 - 1976) was one of the greatest physicists of the twentieth century. He is recognized as one of the founders of quantum mechanics, the modern physics that statistically describes the behavior of atomic particles such as the electrons responsible for current flow. He is also known for his role in nuclear fission research during World War II. Perhaps one of his most outstanding contributions to the theory of quantum physics is his development of the “Uncertainty Principle”, which Heisenberg published in 1927. This was during the late twenties when Einstein had gained international recognition in quantum theory.Heisenberg’s uncertainty principle, says that one cannot simultaneously precisely, measure both an atomic particle’s position and its momentum (mass * velocity). Simply stated, you can know its position but not know its momentum or you can measure its momentum but not know where it is. This concept along with most quantum theories has no parallel in the classical Newtonian word most us learned in school and, consequently, most of us have difficulty comprehending. Quantum Theory is, nonetheless, well established and has been experimentally verified. Dataforth products do not obey the "Uncertain Principle". There is no difficulty comprehending the quality, accuracy, reliability, and performance of Dataforth’s Signal Conditioning Modules, SCMs. Absolutely no uncertainty applies in Dataforth’s products, which have specifications that can be precisely measured and directly observed in use. Moreover, all Dataforth SCMs are shipped with serialized test reports to verify performance! Dataforth Test Reports are shipped with each module and can also be accessed online here: Test Data Reports Remember, our Application Engineers can assist you with signal conditioner selection over the phone or via fax and email. Call us at our manufacturing facility in Tucson at 520-741-1404 (fax 520-741-0762) or Email us at email@example.com.