One, Product Description: Test piles are used for the detection of cathodic protection parameters, including the measurement of the cathodic protection potential, current, grounding resistance at the main distribution points of the cathodic protection system, electrical insulation performance of insulation devices, and the monitoring of anode operating conditions, among other important parameters. This device is equipped with 6 terminals and can be conveniently assembled into potential, current, sacrificial anode, insulation performance test piles, or crossover pipeline test piles according to the specific requirements of the design unit. The test pile consists of several parts, including the pile body, test connection board, test wires, and nameplate. Two, Classification of Test Piles: By material: Steel test piles, Cement test piles, Plastic test piles, FRP (Fiberglass Reinforced Plastic) test piles. Steel test piles are further divided into carbon steel test piles and stainless steel test piles. Three, Specifications and Models: Common Test Pile Models and Specifications Model Specification Length × Diameter × Wall Thickness (Length × Width × Height mm) Material CS-1 3000×Φ108×4 Carbon Steel CS-2 1800×Φ89×3 Carbon Steel CS-3 1200×120×120 Stainless Steel CS-4 1600×120×120 Cement CS-5 1800×Φ89×4 FRP