Pfeiffer Helium and Hydrogen Sniffer Leak Detector Model ASM 306S

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Helium and hydrogen sniffer leak detector for easy and accurate full-time sniffing operations

Superior performance, fast testing in a compact design
The sniffer leak detector ASM 306 S will help you to meet your daily challenges for leakage control using sniffing measurements in emerging technology like e-mobility and hydrogen energy economy or well established applications in refrigeration and air conditioning. The ASM 306 S offers all the advantages of a proven technology regarding sensitivity, accuracy and repeatability. It has been designed to offer fast and repeatable measurements, whether helium or hydrogen is used as tracer gas. This unit offers the highest testing reliability to increase productivity and quality levels and provides the fastest recovery in case of big leaks to maximize uptime. Additionally specific attention has been placed on the robustness of the complete ASM 306 S, including the probe and its cable, to provide you a full-time sniffing unit with low cost of ownership.

Smart, user-friendly with an ergonomic and rugged sniffer probe.
The main display of the ASM 306 S offers easy readability with its large size, fully tactile and high resolution screen. Co-designed with the user in mind, the ergonomics of the sniffer probe has been a major focus allowing the operator to be able to hold the sniffer probe during their entire working shift. The test information is visible directly on the probe for easy visual management, so operators can focus on test parts,. The high flow probe will help you pinpoint leaks easily without missing any of them. The probe can be equipped with various hose lengths to easily adapt to your application and can be exchanged independently from the probe itself.

The ASM 306 S can be completed with a 2 years lifetime calibrated leak with both helium and/or hydrogen.

Customer benefits

  • Helium and hydrogen tracer gases
  • High sensitivity and accurate measurements
  • Intuitive menu for easy operation
  • Fast start-up
  • Fast recovery in case of pollution
  • Compact design and small footprint for easy integration into your production line
  • Integrated toolbox
  • Latest generation of tactile HMI with a large touch screen
  • Low maintenance requirements


  • Cooling systems such as refrigerator and air conditioner
  • Heat exchangers
  • Valves and manifolds
  • Gas circuit components
  • Storage tanks, expansion vesse

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