Description :

The Avongard Displacement Tell-Tale monitors horizontal and displacement movement where there is a “step” across a crack due to displacement or “out of plane” movement. The Tell-Tale consists of three components. A base plate (not calibrated) a top plate (which is calibrated) and a graduated ruler. The ruler is not left on the gauge but is used to measure the relative movement in the two plates.Calibrated in millimetresDisplacement monitoring range of 110mm. Horizontal monitoring range of -10mm to +50mm.