Quartz Monitor Crystals

Quartz Monitor Crystals for Vacuum Applications The quartz crystal is the rate and thickness sensing element in a QCM system. These crystals are used in vacuum applications with any standard INFICON monitor or controller and an INFICON (or other make) single, dual, and multi-crystal sensor. Offering a wide variety of crystals and packaging, INFICON can get you the crystals you want, when you want them.