The Concrete Permeability Coefficient Tester is a fully automatic intelligent testing instrument developed specifically for our company to meet the detection requirements of permeable concrete during the construction of sponge cities, particularly for the selection of optimal permeable concrete. It was the exclusive product for the "Permeable Concrete" competition organized by the China Concrete and Products Association on December 06, 2016. It was also the exclusive product for the "2th China International Sponge City Construction Forum" held in Quanzhou, Fujian from July 21-23, 2017. The product is divided into permeable concrete, permeable bricks, and multi-functional permeable integrated machines. Users can choose according to their business and research needs.