SCCON Scientific Research Inc.

Power Line Frequency Monitor

This low cost module measures the short-term accuracy of 60 Hz sources. A bright bargraph indicator displays variations around the ideal frequency.


Many devices make use of the 60 Hz waveform from the local power utility as a timing standard. While the long-term accuracy of this source is assured through periodic adjustments made to the power grid, there is significant drift above and below the expected norm throughout the course of a typical day. This useful tool shows at a glance whether the power line frequency is currently above or below 60 Hz in 0.005 Hz increments (1 part in 12000).



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