A large range of mechanical crackmeters (jointmeters) are produced to suit all the client requests.
The removable deformeter allows to measure relative movements between two reference pins positioned across the joint (fissure). Supplied with carrying case it has a precise sliding rail with adjustable base length.
Uniaxial and 3-D (triaxial) mechanical jointmeters are available to monitor joints and cracks. The movements between the two anchors are obtained with mechanical dial gauge. Simple and cheap, the TT-1 tell-tale crack-monitor installed across a fissure allows the crack survey in two directions.