A basic Tell-Tale crack monitoring gauge that monitors horizontal and vertical movement across a crack on a flat surface to an accuracy of +/- 1.0mm and by interpolation to +/-0.5mm.
The original and genuine calibrated Tell-Tale that has been used for monitoring horizontal and vertical movement across cracks since 1978.
It is essential that products used for monitoring changes in crack width are quality precision instruments. Great reliance is placed on the results of the monitoring and the user may be liable if inappropriate remedial work is recommended based on the results of imitation products of inconsistent quality.
All the Tell-Tale products are the original and genuine crack monitoring gauges and are all manufactured to conform to BS EN ISO 9002: 1994.
• Suitable for internal and external use
• Record sheets supplied with each Tell-Tale
• Calibrated in millimetres
• Manufactured in vandal resistant polycarbonate (Plus) or acrylic (Standard)
Co-efficient of thermal expansion: 7.0 x 10-5 cm/cm° centigrade for temperatures between -30° to +30°centigrade. |
