Vacuum Instruments MD-290S Portable Sniffer Helium Detector
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Vacuum Instruments MD-290S Portable Sniffer Helium Detector


  • Capable of Detecting Leaks in x 10-6 atm/cc/sec Range
  • Data Display
  • Removable Sniffer Probe
  • Leak Rate Value Set Point
  • Specific Filaments Switch
  • Fine and Gross Test Ranges

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This Vacuum Instruments MD-290S Portable Sniffer Helium Detector is used and in good condition. It boots up and reports that that the filaments are low. It is recommended that the purchaser of this system contact Vacuum Instruments to have the filaments replaced.

View Photo of included handheld probe and manual

Input Voltage: 120 VAC

Stock # 63905-10

  • Description
  • Tech Specs
  • Datasheets / Manuals 
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The MD-290S is a portable sniffer helium leak detector capable of detecting leaks in x 10-6 atm/cc/sec range. Vacuum Instruments is still providing support for this unit and the majority of components are still available for either repair or purchase.

Product Family: MD-290S, MD-290-S, MD-290 S, MD 290S, MD 290 S, MD290S,
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Cart L x H x W 36” x 46” x 25”
Unit L x H x W 16” x 16” x 19”
Electrical 125V, 15 A, 60 Hz

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Manuals, Datasheets, Drivers, Links

Vacuum Instruments Leak Detection Chart (pdf)  
Link to Vacuum Instruments Website