Features Comprehensive 5-in-1 Functionality: This multi-function energy meter conveniently measures voltage, current, power factor, power, and electrical energy in one compact device Automatic Measurement Resolution: Enjoy enhanced usability with automatic resolution adjustment, ensuring accurate readings for various applications Clear LED Display: Features a 4-digit red 0.32 inch LED digital tube for voltage and current, along with a 5-digit green display for active power and energy, providing easy readability High Measurement Accuracy: Achieve precise measurements with an accuracy of up to 1% ± 2-digit, ensuring reliable results for all your electrical monitoring needs Versatile Compatibility: Ideal for a range of applications, this energy meter is perfect for use with various electrical systems and devices, enhancing its utility in diverse settings Features: 1、5-in-1 multi-function measuring tool, can be used to measure voltage, current, power factor, power, electrical energy. 2、The measurement resolution can change automatically. 3、Voltage display, current display adopts 4-digit red 0.32 inch LED digital tube. 4、Active power, electric energy (electricity) and power factor adopt 5-digit, green 0.32 inch LED digital tube. 5、High measurement accuracy, up to 1% ± 2-digit. Specification: Item Type: Multi-Function Energy Meter Measurement Accuracy: 1% ± 2-digit Display: Voltage display, current display adopts 4-digit red 0.32 inch LED digital tube, active power, electric energy (electricity) and power factor adopt 5-digit, green 0.32 inch LED digital tube. Optional Voltage & Current: 80~300V 100A, 200~450V, 100A Measuring Range: AC Voltage: AC80.0-300.0V (or AC200.0-450.0V, users check according to need when ordering). Please select 80~300V voltage for 220V measuring; Please select 200-450V voltage for 380V measuring. 200-450V if for 220V voltage, when the voltage is lower than 200V the meter does not work. AC Current: AC0.00-100.0A, the display resolution is 0.01A when the measurement current is l than 100A, and the current display resolution is 0.1A when the measurement current is greater than 100A, the range is automatically converted. Active Power: (measuring voltage AC80.0-300.0V) 0.0-30000W (AC200.0-450.0V: 45000W) Electric Energy: 0.000-99999Kwh, automatic conversion of decimal point Power Factor: 1.000-0.000 Measuring Speed: About 2 times per second Use and Wiring Method: 1. According to the wiring diagram of the drawing, connect the secondary end (green lead) of the current transformer of the instrument to the blue terminal of the meter, and pass the wire of the measuring circuit once through the middle hole of the current transformer. 2. Connect the lead of the voltage measurement to the green term Package List 1 x 5-in-1 Meter with Current Transformer 1 x User Manual