1、Rail mounted for easy installation,saves effort. 2、Simultaneous display of AC voltage and current power factor. 3、Stable performance and high accuracy. 4、When the current is less than 100A, the current display resolution is 0.01A. When the current is greater than 100A, the current display resolution is 0.1A, and the range is automatically converted. 5、The voltage shows 4-digit red 0.31 inch LED digital tube, the current and time display adopts 5-digit red 0.31 inch LED digital tube active power, and the electric energy (electricity) display adopts 5-digit green 0.31 inch LED digital tube. 1 x Meter1 x Users Manual Item Type:Multi-Function MeterProduct Model: D52-2047Measurement Accuracy: 1% + 2 DigitAC Voltage: AC200-450VAC Current AC0- 100.0AMeasuring Current: 0.01A Resolution when <100A, 0.1A when >100A.Active Power: 45000WElectric Energy: 0.000-99999kwh, Decimal Point Free ConversionTime Accumulation: 0.00- 999.59hPower Factor: 1000- 0.000Measuring Speed: About 2 Times Per Second