Ainuo Digital Power Meter Measurement parameters:I, Q, λ, f, Time, PintVoltage rated range:60.00V / 300.0V / 600.0VCurrent rated range:400.0mA / 4.000A / 20.00AActive power measurement accuracy:0.01WFrequency measurement range:45Hz≤f≤66HzInterface:RS232(Option RS485, GPIB)、RS232(Option RS485, GPIB)