Vac Checker® Precision Digital Vacuum Gauge
Vac Checker® Precision Digital Vacuum Gauge
The Vac Checker® is a high-precision digital vacuum gauge designed specifically for resin infusion and vacuum bagging applications. Built in partnership with Testo, it combines industrial-grade durability with the accuracy required to achieve consistent, high-quality composite parts.
Unlike traditional gauges, the Vac Checker® measures absolute pressure, allowing you to monitor vacuum levels independent of ambient conditions—critical for reliable infusion results and repeatable part quality.
Key Features
- High-precision digital measurement of absolute vacuum
- Rapid leak detection – identify issues in seconds
- Displays ambient temperature and water boiling point
- Ultra-fine resolution down to 0.01 mbar (10 micron)
- Multi-unit display (mbar, micron, Torr, inHg, Pa, etc.)
- Robust, workshop-ready design
- In-line connection capability for real-time monitoring
Why Absolute Pressure Matters
Vac Checker® measures true vacuum (absolute pressure) rather than relative pressure, ensuring accurate readings regardless of atmospheric changes. This is essential for achieving proper fibre wet-out and avoiding defects in infusion processes.
Advanced Diagnostics
The integrated display of water boiling point at current vacuum helps distinguish between:
- Leaks in your system
- Moisture evaporation within the laminate
This is especially useful when working with core materials like balsa, where moisture can affect vacuum stability.
Performance & Capability
- Measuring range: 1100 to 0 mbar
- Resolution: 0.01 mbar / 10 micron
- Overload capacity: up to 5 bar (relative)
- Connection sizes: 6mm, 8mm, 10mm hose adapters
Typical Applications
- Resin infusion monitoring
- Vacuum bag leak detection
- Drop testing vacuum integrity
- Checking vacuum pumps and systems
- Degassing chambers and composite processing setups
Why Use Vac Checker®
If you’re serious about composite quality, the Vac Checker® is one of the most valuable tools in your workshop. It allows you to identify leaks faster, validate vacuum integrity, and reduce scrap, saving both time and material during production.










