D85-2058 Multi-function digital meterFunction: can measure AC voltage, AC current, active power, power factor, power frequency, electric energy.1. Measurement accuracy: 1%2 digits2. Measurement range: AC voltage: AC80.0-300.0V or AC200.0-450.0V true effective value measurement.AC current: AC0-99.99A, current display resolution is 0.01A, when it exceeds 100A, it will display 100.0A (maximum range 110-120A)Active power: 40-300V display range 0-30000W, 200-450V display range 0-4500 OW, display resolution between 0-9999.9W is 0.1W, [the rest is 1W]Electric energy: the measurement range is 0-99999kwh, 0-999.99kwh minimum display resolution is 0.01kwh 10000.0-9999.9kwh minimum display resolution is 0.1kwh, 10000.0-99999kwh minimum resolution is 1kwh, power frequency: 45. 0Hz-65. OHz, power factor: 0.00-1.00PF3. Measurement speed: 2 times per second4. Dimensions: 70*40*39mm5. Installation size: 68*38mm6. Memory function: When the power is off during use, the accumulated value of the meter will be automatically stored (previous power data is saved).Precautions1. The wiring of the voltage input (green) terminal and the current transformer secondary input (blue) terminal cannot be connected incorrectly, otherwise the meter will be damaged!2. The 200-450V specification of this meter cannot be used for square wave, inverter output and corrected sine wave circuit measurement, otherwise the meter will be damaged!3. Remember not to squeeze the meter LCD screen during the installation of the meter, otherwise there will be garbled/broken code!4. If you buy multiple meters for use, the transformers cannot be used interchangeably! [Because the meter and the transformer are calibrated as a pair] to avoid affecting the measurement accuracy!