Hardness Testers
Shore & Leeb Solutions for Accurate Material Testing
Explore our professional range of hardness testers for accurate, reliable measurement of material hardness across a wide range of applications. Whether you're working with rubber, plastics, foams or metals, GNW Instrumentation offers precision-engineered instruments from Kern to meet your testing needs.
Compare Shore and Leeb Hardness Testers
Choose the right technology for your application. Use the links below to view products and learn more about each hardness testing method.
- Shore Hardness Testers – For non-metallic materials such as rubber, neoprene, plastics, foams, and silicone. Available in Shore A, D, and A0 scales.
- Leeb Metal Hardness Testers – For metals including steel, aluminium, and alloys. Portable, digital testers using the Leeb rebound method.
- Hardness Test Blocks – Shore and Leeb reference blocks for functional checks and comparative testing. Ideal for calibration support and operator training.
Why Buy from GNW Instrumentation?
- Expertly selected range of Shore and Leeb testers
- Optional ISO calibration certificates for compliance and traceability
- Full technical support and after-sales service from UK-based experts
- Fast shipping and UK stock availability
Trusted Solutions for Every Industry
Our hardness testing equipment is used across a wide range of industries including manufacturing, automotive, aerospace, plastics, engineering, and construction. Whether you need to test elastomers on the shop floor or metals in the field, our instruments deliver consistent, repeatable results.
Need help choosing the right tester? Contact our team for expert advice and product recommendations.
Explore Hardness Tester Categories

Shore Hardness Testers
Test rubber, plastics, foams & elastomers with Shore A, D and A0 durometers.

Leeb Metal Hardness Testers
Portable testers for steel, aluminium and alloys using the Leeb rebound method.

Hardness Test Blocks
Reference plates and test blocks for internal verification and durometer accuracy checks.