Starr Instruments analogue dial Shore Durometer is used to test the hardness of all kinds of rubbers, plastics, elastomers, leather, wax etc.

They are fully mechanical with 'lazy arm' (Dual Needle) for peak hold measurement.

A Durometer works by measuring the resistance to an indentation, that is made with a specific indenter and spring loading which values are based on the applicable Shore scale.  Our DD-100 range is available in Shore A and Shore D scales.  

For softer plastics and rubbers Shore A is used.  

Shore D is used on harder plastics.

Usage is simple; just press the durometer against the object being tested and the needle will show the hardness value.  Peak results are indicated by the 'lazy' arm. Reset the lazy arm after each test.  ASTM D 2240 best practice means taking average result from at least 5 measurements in each location.

Check out our Durometer buying guide in our blog for more information on choosing the correct Durometer scale for you testing needs. 



  • Needle stroke: 2.5mm
  • Measure range: 0 ~ 100HA/HD
  • Shore A indenter: Truncated 35° cone, 0.79 mm diameter
  • Shore D indenter: A 30° conical point, 0.1 mm radius tip
  • Weight: 200 grams


SKU DD-100

Be The First To Review This Product!

Help other Test Equip users shop smarter by writing reviews for products you have purchased.

Write a product review