Crack Monitor Gauge / Tell-Tale

AVAILABILITY: This item is usually dispatched same day
The accurate tell-tale way to monitor the movement of cracks, this monitoring gauge reads horizontal and vertical movement across a crack on a flat surface to an accuracy of ± 1.0mm and by interpolation to ±0.5mm.
Co-efficient of thermal expansion: 7.0 x 10-5 cm/cm° centigrade for temperatures between -30° to 30°centigrade.
FEATURES:

- Suitable for interior and exterior use
- Calibrated in millimetres
- Comes with a record sheet for detailing the movement
- Manufactured in tough vandal resistant acrylic (Standard)

SPECIFICATIONS:

- Dimensions: 145x30x8mm
- Attach with: Screws, anchors or glue with Liquid nails, Epoxy or Epoxy Putty (depending on the surface)
- Warranty: 6 Months