Elastmeter Sonde 4 inch

Elastmeter Sonde 4 inch (Model-4203) is a new product optimized for measurement of 100 mm diameter boreholes, which were impossible with conventional models.

Same as the conventional models, it enables measurement of stress and deformation characteristics of the wide range ground from soft rock to hard rock, and it is effective for the foundation design of large-scale structures such as high-rise buildings, dams and bridges.

Elastmeter Sonde 4 inch


  • Easy handling due to the use of rubber packer tubes.
  • A caliper-type two-way sensor built in the sonde enables direct measurement of displacement.
  • The logger can be connected to the Elast Recorder (sold separately).


Deformation detection method Caliper arm method (to measure the inside diameter of rubber tube)
Maximum pressurization 20MPa
Outside Diameter φ96mm
Measurement distance length 520mm


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