Order No.: 1395
complete with fastening screws, plugs and crack monitoring record folder with 10 foils
Crack monitor (1395) for permanent monitoring of crack movements
consist of 2 plates of transparent impact-proof acrylic plastic. The bottom plate has a scale, which is calibrated in milimetres and the overlapping plate is marked with a red graticule.
The crack monitor will be fixed with the enclosed screws or adhesive across the crack on the wall. As the crack opens or closes, the plate with the red graticule moves proportional to the other plate with the scale.
These movements can be read at the calibration scale and recorded on a foil of the enclosed record folder (1395F), the accuracy being 0,5 mm.