Model	Package	Communication Interface	Operating Voltage	Power dynamic range	Baseline measurement	ADC measurement	Active power and energy	Reactive power and energy	RMS voltage and current	Zero line power and RMS current	Frequency Measurement
RN8209C	SOP16L	uart	3~5.5V	8000:1	1.25V±1% 5ppm/℃	3路	√	√	√	√	√
RN8209D	SSOP24L	Spi/uart	3~5.5V	8000:1	1.25V±1% 5ppm/℃	3路	√	√	√	√	√