Walk or drive around with this handheld, directional power line noise meter to search out leaky insulators, loose hardware and corroded ground lines quickly. Track noise right down to the pole, transformer or insulator, or other source.

Operates in the 135MHz region where activity is a minimum and radiation from corona and arcing is far more localized. 0.3æV sensitivity and wide-range AGC for noise level meter -- over 70dB!