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.