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.