Leak Test Instruement

High-Quality Products Air Leak Testers & Accessories

          OCTA Engineering provides a wide range of Air Leak Testers and related accessories that are trusted by leading companies across various industries. Our products are engineered for precision, durability, and efficiency — helping manufacturers ensure product integrity, reduce defect rates, and improve process reliability.

          In today’s competitive manufacturing industry, product quality and reliability are non-negotiable. Detecting air leaks in production lines plays a crucial role in ensuring that every component meets high safety and performance standards. An Air Leak Tester — also known as a Digital Leak Detection System — is a vital tool used to verify airtightness in a wide range of products, from automotive parts and packaging to medical devices and piping systems. 

CTS (Cincinnati Test System) Leak Detection Instruments for Quality Manufacturing

          No matter how meticulously designed or precision-engineered, even the best products can experience manufacturing defects that can cause leaks outside of allowable specifications. Whether it’s gas or liquid leaking from a part or water or dust making it into an assembly, leak testing is a manufacturer’s front line defense to meet performance expectations. For over 40 years, it has been our mission to provide leak test systems and solutions to productiLeak Detection Instruments for Quality Manufacturing No matter how meticulously designed or precision-engineered, even the best products can experience manufacturing defects that can cause leaks outside of allowable specifications. Whether it’s gas or liquid leaking from a part or water or dust making it into an assembly, leak testing is a manufacturer’s front line defense to meet performance expectations. For over 40 years, it has been our mission to provide leak test systems and solutions to production lines of all types to ensure quality parts are shipped.

          This has led us to build the industry’s largest selection of standard and customizable leak test instruments for all common air flow and helium/trace gas leak test methods. This extensive product portfolio means that at CTS, there is no one-size-fits-all solution. We are able to offer a leak tester that meets your specific part, application, plant requirements, and budget. Our leak test experts are here to help you find the right approach to your leak test.on lines of all types to ensure quality parts are shipped. This has led us to build the industry’s largest selection of standard and customizable leak test instruments for all common air flow and helium/trace gas leak test methods. This extensive product portfolio means that at CTS, there is no one-size-fits-all solution. We are able to offer a leak tester that meets your specific part, application, plant requirements, and budget. Our leak test experts are here to help you find the right approach to your leak test

How an Air Leak Tester Works

Most Air Leak Testers operate on the Pressure Decay Method, which involves:

• Pressurizing: Air is introduced into the test component until it reaches the specified pressure.
• Stabilizing: The system pauses briefly to allow air temperature and pressure to stabilize.
• Measuring: The device monitors the internal pressure over a set time interval.
• Evaluating: If pressure decreases beyond the defined limit, the part is identified as leaking.

This non-destructive process eliminates the need for water submersion or chemical detection, making it ideal for clean-room and precision industries.

Common Leak Testing Methods  
There are several techniques used across different industrial applications: 

. Pressure Decay Leak Test – Monitors the drop in pressure inside a sealed part.
. Vacuum Decay Test – Measures pressure changes in a vacuum environment.
. Mass Flow Leak Test – Quantifies the amount of air escaping the system.
. Tracer Gas Test – Uses helium or hydrogen as tracer gases to locate micro-leaks.

Advanced Digital Air Leak Testers often combine multiple testing modes in one unit, enabling flexible operation and higher testing throughput.

Advantages of a Digital Air Leak Tester 

Modern digital systems bring measurable improvements over conventional testing methods: 

 High Accuracy: Detects ultra-small leaks down to micron levels.
 Real-Time Monitoring: Digital display with live graphing and automatic data logging.
 User-Friendly Interface: Intuitive touchscreen for easy operation.
 Programmable Settings: Supports multiple test pressures and conditions.
 Industrial Durability: Designed for continuous use on production lines.
 Connectivity: Compatible with PLC, MES, or factory monitoring systems.

These features make digital Air Leak Testers ideal for high-volume, high-precision manufacturing environments.

Choosing the Right Air Leak Tester  

When selecting an Air Leak Tester for your operation, consider these factors: 

 Detection Range: The sensitivity required for your specific product.
 Test Pressure: The maximum and minimum pressure levels needed.
 Part Size & Material: To ensure compatibility with the testing method
 Automation & Integration: Whether you need PLC communication or full automation.
 Calibration & After-Sales Service: Choose suppliers offering maintenance and support.

Selecting the right model ensures accurate results, efficient production, and long-term ROI.

Why Choose Our Products

• Proven performance and internationally accepted quality
• Used by top-tier companies in automotive, electronics, medical device, and consumer product industries
• Compatible with ISO/IEC 17025 calibration standards
• Customizable solutions for unique production environments
• Reliable support and spare parts availability

Our products are the result of years of field experience and continuous innovation, ensuring that our customers receive only the most dependable and effective testing systems.

The Leader in Leak and Flow Testing

        With the right leak testing process, products perform as expected, the amount of production waste is reduced, and the cost of operation is minimized. CTS’s family of instruments are accurate and repeatable, based on a proven platform of excellence. They are easy to use and easy to configure. Off the shelf or custom engineered, they incorporate a simplicity in design that allows the instruments to be affordable without sacrificing precision. A leak testing instrument from Cincinnati Test Systems delivers reliable, reproducible data to improve the manufacturing process.

Browse our full range of leak test instruments for pressure and flow testing →