1The multifunctional digital meter can measure AC voltage, AC current, active power, power factor, power frequency and electrical energy. 2Display module adopts highdefinition LCD, easy to watch the digit on nthe meter. 3The digital meter has small size, which is easy to intall and convenient to use. 4The measurement parameter of the digital meter is accurate, real time monitoring. 5This digital meter has a memory function and can provide you with past data. Item Type: Digital Meter Material: ABS Measuring range: Voltage AC 40.0-300.0V 1. Measurement Accuracy: 19% 2 words 2. Measuring Range: AC voltage: A40.0-300.0V 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 Electricity: Measuring range is 0-9999kwh, 0-999.99kWh. Minimum display resolution is 0.01kwh 10000.0-999.9kwh. Minimum display resolution is 0.1kwh, 10000, 0-99999kwh. Minimum resolution is 1kwh. Power Frequency: 45.0Hz-65.0Hz Power Factor: 0.00-1.00PF 3. Measuring Speed: 2 times per second 4. Memory Function: when the meter is in use, the accumulated power value of the meter will be self-saved (previous power data is saved). Product Size: Approx. 70x40x39mm / 2.8x1.6x1.5in How to Use: Get the product, connect the cable, and the wiring must be connected well, otherwise the device will not operate.Pass one of the wires of the measuring load through the round hole in the middle of the transformer. The measurement is performed after connecting the cable. 1 x MultiFunctionDigitalMeter 1 x Manual