AOWN-4 Sound Optical Voltage Detector

The AOWN-4 sound-optical voltage detector is designed for acoustic and optical signalling the presence of alternating current in 50 Hz power networks and electrical equipment with a voltage rated from 0.23 kV up to 400 kV (in few ranges). It works in conjunction with the UDI universal insulating pole having appropriate rated voltage. Producer recommends using the UDI-B insulating poles filled with insulating foam.