Intellitone Locate and Isolate Cabling Verify Cable ContinuityTone Live NetworksVerify Ethernet Service Contact Us for More Info. Products Digital Multimeter | Digital Clamp Meter | Insulation Tester | Earth Resistance Tester | Oscilloscope | Function Generators | Power Supplies | Panel Meters | Multifunction Meters | Current Transformers | Shunts | Lux Meters | Sound Level Meters | Vibration Meters | Air Velocity Meters | Temperature Indiactors & Sensors | Infrared Thermometers |