DU4W series - digital power meter/power factor meter [fast sampling, 4 times faster detection speed]

True effective value measurement, measurement range 1-9999 button setting parameters, 4-digit LED, 8-inch digital display with output hysteresis setting, improving the stability of instrument and system operation. High measurement accuracy, up to 0.3% accuracy of full range, with 4-20mA or 0-10V optocoupler isolation output