Profile: Telefonix Technology is a provider of electronic tool and components. Our product line includes voice, data and video instruments, fiber optic instruments and broadband instruments, fiber optic connectors, and cable assemblies & services. Our brands include ToneRanger™. Our fiber optic handheld test and measurement instruments are designed to meet the needs of fiber optic technicians & engineers. These tools include light emitting diode & laser sources, optical power meters, visual fault locators & attenuators. Our general test instruments include meters and accessories.