For monitoring settlement and deformation of roads, buildings and other surfaces.

Contains Ø17.5 mm mini prisms on two sides with +20° inclination. 

Cast aluminium housing 100 x 100 x 23 mm. Weight 375 grams.

Fix with nails, roofing screws or construction adhesive such as Liquid Nails, Bostik/Simson MSR or Sika Extreme.

(For heavy traffic, a combination of screws and adhesive is recommended)

Hole diameter: 6mm.

SKU GD-ART-D