Sentinel BC5/IC5:
Focused leak testing. Simplified.
The proven Sentinel 5-Series platform, purpose-built for dedicated leak test applications.
When your application calls for one test technology, you don’t need an instrument built for everything. You need the right technology, the right functionality, and a straightforward way to get the job done.
The Sentinel BC5 (benchtop) and IC5 (wall-mount) deliver dependable leak test performance on a streamlined, purpose-built platform—combining proven Sentinel architecture with an intuitive fifth-generation user interface and the connectivity needed for modern integrated test stations.
A New Dimension of Simplicity.
Designed with the intuitive Sentinel user experience, these instruments deliver the essential capabilities you need for dedicated pressure decay, differential pressure decay or mass flow applications in a streamlined, easy-to-use platform. Watch now for a quick look at the Sentinel BC5 and IC5.
Purpose-built instruments for your test
The Sentinel BC5 and IC5 are designed for singular technology applications where the priority is dependable measurement, straightforward operation, and easy integration.
The Sentinel BC5 and IC5 are available as dedicated instruments for three test technologies: Absolute Pressure Decay, Differential Pressure Decay, and Mass Flow.
Choose the configuration that fits your application
Sentinel BC5
Bench/horizontal mount
A flexible configuration for benchtop testing of manual applications, or automated systems where multiple instruments are integrated side-by-side.
Sentinel IC5
Wall/vertical mount
A space-conscious configuration designed for overhead mounting on station-dedicated automated or manual test stations.
Built for a broad range of applications
Whether the application is manual, automated, standalone, or integrated into a larger production system, the Sentinel BC5 and IC5 provide a fundamental platform for dependable leak testing. The Sentinel BC5 and IC5 provide focused leak testing for applications across a wide range of industries, including:
Focused functionality. Proven performance.
Everything you need for core leak testing. Nothing you don’t.
At CTS, we realize that not every application requires complex test sequence management, instrument-controlled tooling, or multiple test technologies in a single instrument. The Sentinel BC5 and IC5 focus on the essentials:

Configure the test. Run the test. Evaluate the result. Communicate the result.
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Focused, efficient functionality
Everything needed for core leak testing—without the extent of functions intended for more complex or diverse applications. -
Intuitive fifth-generation user interface
The latest CTS platform combines a familiar user experience with simplified and graphically enhanced access to test status, results, setup parameters, and statistical information associated with the Sentinel 5-Series. -
Proven leak test performance
Precision measurement technologies and established Sentinel architecture provide the accuracy, repeatability, and reliability expected from a dedicated leak test instrument.
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Simple migration from other CTS devices
Designed as the successors to the Sentinel LPC528 and C28, providing an intentional transition to modern 5-Series architecture. -
Ready for integration
Built-in network and serial communications, as well as the industry’s two most prevalent PLC protocols, make the Sentinel BC5 and IC5 ideally suited for integrated test stations where tooling movements and process sequencing are managed externally. -
Multiple stored test programs
Conveniently store and access unique test programs tailored for differing part test requirements while keeping operation straightforward.
Easily migrate from legacy Sentinel to new Sentinel 5-Series
If you’re upgrading from a Sentinel LPC528 or C28, the Sentinel BC5 and IC5 provide a purpose-built path to modern fifth-generation Sentinel architecture. Experience the benefits of an updated platform and user experience while maintaining the focused approach your application requires.
Ready for the next generation of leak test?
One Sentinel family.
More ways to configure your test system.
The Sentinel BC5 and IC5 extend the Sentinel 5-Series portfolio with dedicated test technology and installation options for applications that call for core functionality.

Sentinel BC5
Purpose-built leak testing in a flexible bench-mounted configuration.

Sentinel IX5
Multifunctional leak testing with the flexibility to combine multiple test technologies, sequential testing and tooling controls in one instrument.

Sentinel IC5
Purpose-built leak testing in a station-centric wall-mounted configuration.
Ready for a simpler approach to leak testing?
Get the Sentinel BC5 or IC5 configured for your application
Choose the mounting configuration. Choose the test technology. Put proven Sentinel performance to work without paying for functionality your application doesn’t require.
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