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DD-300 Digital Precision Durometer

Made in Germany
DD-300 Digital Precision Durometer
Click images to enlarge.
Our new DD-300 Durometer range takes rubber / plastic hardness testing to the next level.

This DD-300 hardness tester has been designed to have almost no internal friction and therefore meets the highest quality standards.

The entire internal movement is guided by bearings and makes this one of the best digital durometers available today.

The DD-300 Durometer is available in Shore A, C, D, O, OO, AO, DO and Asker C.


  • Highly accurate and repetitive
  • Measuring Modes:
    • Continuous Mode
    • Peak Mode
    • Timer Mode
  • Timer function to take measurement after (0-15) seconds.
  • Conform to DIN ISO 7619-1, ISO 868, ISO 7619-1 and ASTM D 2240
  • No internal friction due to precision engineered bearing system for internally moving parts.



Measuring range0.5 - 100 units
DisplayLCD digit 8 mm high
Data Output PortOpto RS232
BatteryRe-chargeable 3.6V 1/2AA Size LI-SOCl2
Continuous Operating Time BatteryApprox. 18 hours
Auto OffAfter approx. 1 minute
Power SupplyInput - 100-240 VAC
Output: 5 VDC 650mA
Dimensions112 x 64 x 26 mm (HxWxD)
Weight (net)250 g
Warranty1 year
Accuracy± 0.5

Conformance to International Standards

Model ASTM D2240 DIN 53505 ISO 868 ISO 7619

Indentor Types

Type Indentor Shape Force
A Flat cone point, 35º Included Angle
Soft rubber, plastics, and elastomers, printer's rolls.
822 Gr
B Sharp cone point, 30º Included Angle
Harder elastomers and plastics. Paper and fibrous materials, Use above 93 Duro A.
822 Gr
C Flat cone point, 35º Included Angle
Medium hard elastomers and plastics. Also useful to avoid surface marks.
4536 Gr
D Sharp cone point, 30º Included Angle
Hard rubber and plastics such as thermo plastics, flooring and bowling balls.
4536 Gr
DO 3/32" Spherical
Dense granular material, textile windings.
4536 Gr
O 3/32" Spherical
Very soft elastomers, textile windings, soft granular materials. Use below 20 Duro A.
822 Gr
OO 3/32" Spherical
Light foams, sponge rubber gels, animal tissue.
113 Gr

Complete Kit

The DD-300 Durometer is supplied with:
  • a plastic foam fitted case
  • an (100 - 240) AC power supply
  • a manual
  • a calibration certificate
  • a battery

Related Products

OS-300-2 Durometer Test Stand
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Durometer Test Stand
- Provides improved accuracy & repeatable when used by separate operators
- Spring loaded lever for fast & precise travel
tbkc-a durometer test block kit
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Test Function Of Durometers
- Enables user to perform a quick check for proper durometer operation

Buy Now

Item Description Price
Digital Durometer type A
Digital Durometer type B
Digital Durometer type Shore C
Digital Durometer type D
Digital Durometer type O
Digital Durometer type OO
Digital Durometer type DO
Digital Durometer type Asker C
Adapter to mount DD-300 Durometers to OS-300 Test Stand
Software for DD-300 Series Durometer (Includes Opto RS232 cable)
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.