Product Name: Geotechnical 4arm Concrete Bored Pile Detecting System for 100m Deep Pile Caliper and Sediment Logging Tester Model NO.: GD Horizontal Line: 1 Vertical Lines: 1 Accuracy: <1mm Product Name: Pile Caliper and Sediment Tester Borehole Measuring Range: 500mm to 1600mm Depth: 100m Borehole Measuring Precision: 5mm Trademark: Gold Transport Package: Export Case Specification: Set Origin: Chongqing Product Description GDGeotechnical 4Arm Concrete Bored Pile Detecting System for 100m Deep Pile Caliper and Sediment Logging Testeris multi-Arm Caliper tools are electro-mechanical cased hole logging instruments that provide an accurate and detailed internal profile of the tubing, casing and completion assembly.APPLICATIONS &BENEFITSEconomical.Serves as early warning of cave-ins or swelling prior to casting of the in-situ pilesUsed to determine borehole diameter and shape and wall roughnessIn advanced cases can be used to find the volume of the drilled holeCan be used to serve as an indication on the stability of the walls of the drilled holes1. Borehole measuring range: Ф500mm~Ф1600mm(Ф2000mm,Ф2500mm can be customized)2. Borehole measuring precision: ≤±5mm3. Verticality measuring range: 0°~10°, measuring precision ≤±0.1°. Resistivity measuring precision≤5%4. Sediment measurement: Diameter of probe is Ф40mm;Distance between electrodes:20mm±0.5mm.5. WinchLength of cable: 100m(The length can be customized)