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Micro Crackmeter (VW)

Micro Crackmeter (VW)



The Model 4422 is a miniature crackmeter intended to measure displacements across surface cracks and joints. It has been specially designed for applications where access is limited and/or where monitoring instrumentation is to be as unobtrusive as possible (e.g. on historical structures or buildings).


Standard Range 4 mm (±2 mm)
Resolution 0.001 mm
Accuracy¹ ±0.1% F.S.
Nonlinearity <0.5% F.S.
Temperature Range² −20°C to +80°C
L × Diameter 120 × 8 mm

¹Accuracy established under laboratory conditions.

²Other ranges available on request.