MKS Instruments was founded in 1961, in Andover Massachusetts. MKS sets the standard for Gauges, Meters, and Leak Detectors. Our products can be found in the coating, food & beverage, power generation, semiconductor, stack emissions, medical devices & instruments, and engine emissions markets. People around the globe rely on our products to keep them safe from unseen dangers. We have more than 600 patents to our name and our team of experts consists of over 500 degreed scientists and engineers. Call us or check out our website for more information.