FeaturesContact-free audible and visual indication of AC voltages between 90 and 1000 V ACClear, omnidirectional flashing LEDQuick and accurate detection of cable breaksPhase detection in sockets & cablesPress to test switch avoids nuisance buzzing and extends battery lifeThe PL107N is a Non contact- optical and acoustic indication of AC voltages between 90-1000V. The Di-LOG Non Contact Voltage Indicator has a clear, omni-directional flashing LED, as well as a quick and accurate detection of cable breaks and phase detection in sockets and cables.