Leybold Phoenix L300i

The Phoenix L300i is very popular and reliable helium leak detector. It is user friendly and can detect leaks as small as 5×10-12 mbar l/s. Being a mobile helium leak detector, the Phoenix L300i is equally suited for use on mass production lines and service work.

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The Phoenix L300i excels through ruggedness, rapid entry into the measurement mode, high measurement accuracy and reliability as well as flexibility of use.  The unit comes with either a wet internal vane pump or internal diaphragm (dry) pump. The unit also comes in a modular version that can be configured with either an external a wet or dry pump. The helium leak detector and external pump can mounted on a heavy-duty cart to increase mobility.


  • 3 models: modular, wet, and dry
  • High stability, accuracy and repeatably
  • Durable helium mass spectrometer and ion source
  • Switchable for the detection of H2, 3He and He
  • Low cost of ownership


  • Lamp and tube manufacturing
  • Power Plant Engineering
  • Electron beam welding
  • Electron microscopy
  • High energy physics
  • Automotive industry
  • Cyrogenic resarch
  • Space simulation
  • Implant source
  • Plasma etching
  • Lithography


  • Remote control (wired or wireless)
  • Partial flow valve
  • External test leak
  • Heavy duty cart
  • Sniffer Probe
  • IO interface


Phoenix L300i Manual

Phoenix L300i Brochure

Technical Data

Phoenix L300i Technical Data