Suitable for use both indoors and outdoors, the Chauvin Arnoux CA6460 is there whenever you need to test earth connections. Built-into its own protective, watertight carrying case for extreme durability and easy transportation, the Chauvin Arnoux CA6460 is ideal for use on both existing and new electrical grounding applications. Whether you're setting up a brand new system and want to ensure correct earthing or are carrying out measurement/error diagnosis to maintain safety in electrical systems, the CA6460 has all of the tests you need to test safely, accurately and find problems with earth. This earth tester can measure ground resistivity (using 4 rods), ground connection resistance (using 2 rod TAGG method) and coupling between two earthing points using 4-wire measurements. It has three measurement ranges: 0 to 19.99Ω, 20 to 199.9Ω and 200 to 1999Ω.