Professional In-House Verification Solutions

Explore the full range of GNW calibration systems and accessories – engineered for accuracy, stability, and real-world workshop performance. From complete pressure calibration kits to high-accuracy digital reference gauges and precision pressure generation equipment, GNW systems support reliable in-house verification for engineering, maintenance, and ISO-compliant environments.

Designed and specified by calibration engineers, our solutions provide practical alternatives to routine external calibration while maintaining traceability and professional standards.

Engineered for Workshop & Industrial Environments

Our calibration systems are suitable for:

• Engineering workshops
• Maintenance departments
• Manufacturing facilities
• Utilities and process industries
• ISO 9001 quality systems

Whether you are building a new in-house calibration capability or expanding existing workshop equipment, GNW provides reliable, professional solutions backed by technical expertise.

Need help selecting the right calibration system, pressure range, or accuracy class? Contact GNW Instrumentation for expert advice and support.

Explore Featured Categories

Pressure Calibration Systems

Complete workshop and field calibration systems including comparator, reference gauge and adaptor kits for accurate in-house verification.

Digital Reference Gauges

High-accuracy digital reference standards for verifying pressure gauges and transmitters with confidence.

Pressure Generation Equipment

Pneumatic comparators and manual pressure pumps with fine adjustment control for stable and repeatable test point setting.

 

 

Calibration Manifolds & Accessories

Multi-port manifolds, adaptor kits, hoses, isolation valves and fittings for flexible connection and efficient test setup.