With Bullhorn RM4210, operators can identify areas where AC may be source of corrosion, ensure that AC mitigation systems are working correctly, and know when AC current density conditions change so that mitigation systems can be adjusted. Remote monitoring unit measures AC and DC coupon current density, AC and DC pipe-to-soil, native pipe-to-soil, instant off, and PCR AC current. Measurements are automatically uploaded via satellite communication to Bullhorn Web, a web-based asset manager.