Gemini™ MxG55x

While Gemini MPG55x combines two sensor systems in one small device to measure from atmosphere down to 1x10– 9 mbar, the Gemini MAG55x is a pure cold cathode sensor System (without Pirani element) which covers the range from 1x10-2 mbar to 1x10– 9 mbar. The patented ultra-low magnetic stray field design opens up a whole new range of applications. A unique interchangeable dual chamber sensor unit avoids cleaning cycles and reduces maintenance, making Gemini the most robust and economical vacuum gauge of its kind. Gemini™ MxG55x gauges come with fully integrated digital electronics, providing ultimate flexibility for system integration. The Cold cathode and Pirani combination version (MPG) option provides seamless transition, reliability, practicality and flexibility across wide ranging applications. For corrosive applications we suggest to use the ceramic coated version MxG554. Feedthrough and Pirani inside the sensor head are fully ceramic coated for enhanced corrosion resistance. Gemini™ Cold Cathode and combination sensor`s come with fully integrated digital electronics, providing ultimate flexibility for System Integration.


  • Long lifetime in harsh environments
  • Lowest magnetic stray field available on the market
  • Reliable fast ignition
  • Fastest maintenance - replaceable Ionization chamber insert
  • Compact size - easy to integrate
  • Corrosion proof feed-through & sensor element
  • Selectable measuring current
  • 2 relay setpoints (in conjunction with MxG55x EtherCAT Version)


  • Base pressure monitoring and control, from atmosphere to high vacuum in evaporation and sputter coating applications
  • General vacuum measurement – industrial furnaces, architectural glass, semiconductor, Refrigeration/ air conditioning and production laboratory`s
  • Analytical and R&D applications – mass spectrometry, electron microscopes, ophthalmic, optical, medical and high energy physics


Gemini™ MxG55x




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