... vessels, chemical equipment, boilers, COATING THICKNESS GAUGE MODEL CM-8856 COATING THICKNESS GAUGE MODEL CM-8856 COATING THICKNESS GAUGEFeatures:It meets the standards ... nickel etc.). It is often used to measure the thickness of galvanizing layer, lacquer layer, porcelain enamel layer, ... :1.USB adaptor for RS-232C2.Bluetooth interface COATING THICKNESS GAUGE MODEL CM-8856 COATING THICKNESS GAUGE