Location: Testifier is supported by the most comprehensive set of wiremapping locators in the world. Up to 20 cable end locations at a time can be identified and tagged.Position: Testifier"s built-in tone generator is the most flexible and function-packed tone generator you will ever use. Its configurable signal can be generated to find and fix the position on any type of cable - either exposed or hidden, in ceilings or behind walls.TestifierTM represents the best of 21st century testing technology.