VW Multiple Point Rod Extensometer be installed directly in boreholes and fixed easily with groutable anchors. Up to 6 anchors can be installed for monitoring deformation of several movable sides in different depths or zones. The GK/BGK-A6 Multiple Point Rod Extensometer uses a fiberglass transmission rod with a simple structure, so its installation is very convenient and instant. The internal thermometer can simultaneously monitor site environmental temperature.

The VW Extensometer has high accuracy and sensitivity, excellent waterproof performance and long-term stability. It achieves frequency and temperature resistance signal transmissions with a special multi-core screened cable.  And the frequency signal is free of cable length influence. It is suitable for long-term monitoring buildings, foundation, and layered slope displacement changes in harsh extremes.

1, Borros Hydraulic Anchor is used in soft soils and clays, especially in augered boreholes. It can also be driven directly through soft ground without a borehole being required. 2, Groutable Anchor is used in downward-directed boreholes. The preassembled extensometer is installed in the borehole and is then filled with cement grout. These anchors can also be used in upward-directed boreholes with a more complicated grouting procedure. 3, BGK Hydraulic Anchor is used in rough boreholes in rock and soft ground. Its 3 flukes are in open without pressure. 4, Plug Hydraulic Anchor is used in rough boreholes of rock and soft ground, especially in possibly contracting or expanding boreholes, either grouting or not grouting upward-directed boreholes as well. 5, Snap-Ring Anchor is used in hard or competent rock where smooth uniform boreholes can be drilled. The simplicity of its design allows for quick and easy installation.

Remarks: GK series are imported products.