Faced with the industry’s testing needs for micron-level leaks, Hairisi has launched a new oneHM-400 helium mass spectrometer leak detector, deeply integrating magnetic deflection technology and mass spectrometry analysis, with 5*10^-13Pa·m³/s level ultra-high precision sensitivity, building a "sealing detection + leak location" sealing quality protection network, comprehensively covering power battery and positive and negative pressure multi-scenario detection needs, leaving safety hazards nowhere to hide in technological breakthroughs.