Metrix Plus 1.5 V Digital Rubber Hardness Tester is ideal for measuring the hardness of rubber and other materials such as polymers, elastomers etc. 1.5 V Digital Rubber Hardness Tester measures rubber's effect on the surface of localised penetration by hard steel. Rubber Hardness Tester uses hardened steel under a load of specific grams into a surface to measure the diameter of indentation with a microscope. Digital Rubber Hardness Tester uses the concept of elasticity to measure the hardness of the rubber. The Hardness Tester has an automatic switch-off function which makes the device power-efficient and saves battery power. The low battery indicator comes in handy for the user to understand when a battery change is required. Product Specification- Brand- Metrix Plus Dimensions- 170 x 63 x 24 mm Model- RHT- A Measuring range- 0-100/ 10-90 H Operating temperature- 0-50 Degree C Power supply- 2 x 1.5 V AAA Battery Weight- 310 grams