Monitoring convergence of tunnel walls and roof.

Monitoring displacement of retaining structures, bridge supports, and other structures.

Back analysis of stress field from obtained results 

Special Features

A durable instrument suitable for harsh environment such as tunnels. 

Simple to use and rapid measurement in any orientation.

Fully made from stainless steel to last long in humid and often acidic environments.

Reasonable accuracy for most applications 

Implementing a self cleaning system when the tape is wrapped after operation.

High accuracy calibration frame with a known length to provide the possibility of exact length calculation.

Provided in a protective box with accessories

Required Information For Ordering