Sentinel I28 Leak Detection System

Sentinel I28 is manufacturing’s most versatile and robust pressure decay and mass flow test instrument. It delivers durability and high test repeatability in a proven, standard platform and is configurable for a vast array of test types and options for pressure, flow, or vacuum testing. A multifunctional unit, it can be integrated with a PLC or operate on its own and control up to 5 tooling motions.
image shows a front view of the Sentinel I28

Sentinel I28 Leak Testing Technologies

The Sentinel I28 leak detection system is configurable for a variety of pressure decay testing or mass flow testing requirements. It provides storage for up to 99 pre-programmed test sequences and features a “Parent Program” that holds a customized test sequence for your multi-test application.

Man in industrial office facing computer monitor which has a CTSnet LT screen on it.
  • Designed to deliver accurate, reliable, repeatable measurement
  • Flexible and customizable to adapt to the needs of your production line
  • Easy to set up and operate, and now you can also manage the system from your PC with free CTSnet LT
  • Integrate with a PLC or operate on its own with individual and linked tests in a user-programmed sequence
  • Able to control up to 5 tooling motions with feedback

One instrument can control the operations of a test stand and replace a PLC for a cost-effective approach to testing!

Pressure Decay/Mass Flow Test Options

  • Mass flow: direct flow reading (pressure test only)
  • Mass flow: continuous direct flow reading (pressure test only)
  • Mass flow: with certified mass flow leak standard (pressure test only)
  • Volumetric fill leak test: IPX6, IP67, sealed part leak test
  • Ambient Pressure Correction for large part leak testing

Differential Pressure Decay Test Options


  • Differential Pressure decay/vacuum decay: Calculated Leak Rate
  • Fixed Charge Fill: IPX6, IP67, sealed part leak test



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  • Sentinel I28 Brochure


  • CTSnet LT Software Specifications
  • Sentinel I28 Datasheet

User Manuals

  • Sentinel I28 - User Manual - English
  • Sentinel I28 - User Manual - English

Product Drawings

  • Sentinel I28 - 2D CAD
  • Sentinel I28 - 3D CAD

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The World Leader in Leak Testing Equipment

CTS has more than 40 years of experience in engineering and manufacturing high precision, repeatable, and reliable instruments for demanding leak test applications in manufacturing environments. Our application engineers will work with you to develop a custom solution specifically suited to your needs.
All CTS instruments are CE certified and carry a two-year limited warranty. Normal delivery for all standard instruments is 2-4 weeks plus delivery time.
Contact Cincinnati Test Systems to get the Sentinel I28 leak detection system or other leak testing equipment you need.