LACO’s LHCT02D helium concentration tester is designed to measure helium concentration in production parts that have been previously filled with helium gas. Working in conjunction with a helium mass spectrometer, the LHCT02D provides excellent accuracy and fast response time. Includes the LSP-HCT-5 sniffer probe.


  • Interface with test ports of most helium mass spectrometer leak detectors including Alcatel, Inficon, and LACO’s P-Series TITANTEST™
  • Analyze test data quickly and easily with digital readouts and fast response times (typically less than 5 seconds)
  • Get accurate helium measurements with our highly sensitive sniffer probe and simple calibration process


  • PLC based control system with 4.3" color touch screen
  • PLC menu includes test, calibration and advanced settings
  • Dual language control with English/Spanish
  • USB port for data collection and software updates
  • Sniffer probe for sampling at atmospheric pressure (custom sampling probes available)