Tell-tale Crack Monitor
Tell-Tales consist of two plates which overlap for part of their length. One plate is calibrated in millimetres and the overlapping plate is transparent and marked with a hairline cursor. As the crack width opens or closes, one plate moves relative to the other and the relationship of the cursor to the scale represents the amount of movement occurring.
Applications
Used for the measuring widths of active cracks.
Features
- Simple to read
- Easy installation
- Low cost
