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Multiple Point Rod Extensometers - Model A3
The Model A-3 Multiple Point Rod Extensometer is the preferred design for installation in downward directed boreholes which are easily filled with cement grout. Up to eight anchors can be installed, at various depths, in a 76 mm diameter borehole providing the capability to locate multiple failure planes and zones of movement.
Standard Range up to 300 mm nominal
Least Reading 0.025 mm
Borehole Diameter 76 mm or over
Maximum Length 100 m
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