Today, we are expecting more satellites and space equipment to pierce the stratosphere than we've ever had before. Reliable High vacuum environments are very important to test components for mission critical functionality and reliability by simulating space as closely as possible. Space lacks the earth’s magnetic field or atmosphere to shield it and the matter within from extreme temperatures and radiation. Components for space applications receive the full brunt of extraterrestrial radiation and are exposed to extremely low pressure, so to properly understand component designs and behaviours in space, testing with confidence can only be achieved with good simulation capability. Consistent testing performance is mandatory because of the duty that each of these components must undertake toward their final product.