Crack Monitor Gauge

Simple and accurate device for monitoring & charting movement of cracks and joints in concrete and masonry structures. Movement is indicated by crosshairs on a grid and is recorded by periodically copying the crosshair positions onto an accompanying chart.

Manual: H-2936_Crack_Monitor.pdf

Crack Monitor Gauge with Measurement Tabs

Similar to the standard gauge (H-2936), but allows you to measure the width of the crack using a vernier or digital caliper— enhancing accuracy.

Manual: HC-2937_crackmonitor.pdf

Corner Crack Monitor Gauge

The corner crack gauge, with its hinged design is used to monitor cracks in both internal and external corners. Corner gauges are sold in pairs.

Manual: HC-2938_crackmonitor.pdf

Multi-Direction Crack Monitor Gauge

The displacement crack gauge monitors displacements in 3 directions. It monitors displacement and horizontal movement where there is a step across a crack due to displacement or an out of plane movement.

Manual: HC-2938_crackmonitor.pdf

Multi-Length Strain Gauge Set

Mechanical gauge is recommended as a substitute for the Whittemore strain gauge for many applications. Designed to measure strain in masonry-type materials, structural components under load, opening or closing of structural cracks, measuring relative structural displacements, rock mechanics testing and drying shrinkage of concrete block testing.

Instrument frame is cast aluminum alloy with 5 master settings of 2, 4, 6, 8 and 10 inches, easily set for gauging. Dial indicator has .0001" minimum graduation; effective strain range is 0.3". Maximum linear measurement is 0.4". Set includes: strain gauge, dial indicator, 8 brass inserts, 2 contact seats, 2 mounted contact points, invar master bar, punch bar and one compartmented wood storage case. Metric model has 5, 10, 15, 20 and 25cm settings and dial indicator with 002mm graduations. Meets ASTM C426.

Metric Multi-Length Strain Gauge Set

Metric Version of the H-3230 Multi-Length Strain Gauge Set