Simple strong magnetic field can not affect the transmission of electrical pulse signal.
Pulsed photoelectric signals are almost ineffective against magnetic field interference. IC card prepaid smart meter is the core of IC card, IC meter has multiple functions to prevent electricity theft, high precision, built-in imported special chip, anti-interference ability is quite strong; The coil inside is also a measure of anti-interference measures; The above are analyzed from the principle, the actual effect will not be too obvious, because the external magnetic field will not be how strong. It is understood that the components of the meter are made of copper and aluminum, and the strong magnet is not an alternating magnetic field can not produce eddy currents on the dial, so the speed of the meter will not have an impact.