Features: 1. Practical Use: Measures AC voltage, current, active power, power factor, frequency, and electrical energy. 2. Clear Display: Features an LCD digital display for clear data reading, simplifying operation. 3. Easy to Install: Lightweight and compact design allows for quick and simple installation. 4. High Accuracy: Offers a wide measurement range and high accuracy for reliable readings and improved control. 5. Multifunctional: Includes memory function and high testing efficiency, making it easy to operate. Specifications: Item Type: AC Meter Material: ABS Measurement Accuracy: 1% Measurement Range: - AC Voltage: AC 80.0300.0V or AC 200.0450.0V (True RMS) - AC Current: AC 099.99A (display resolution: 0.01A); values above 100A displayed as 100.0A - Frequency: 45.065.0Hz - Power Factor: 0.001.00 PF Measurement Speed: 2 times per second Product Size: Approx. 70 x 39 x 40mm / 2.8 x 1.5 x 1.6in Package List: 1 x Power Monitor 1 x User Manual Notes: 1. Do not reverse-wire the voltage input (green) terminal and the current transformer secondary input (blue) terminal; doing so may damage the instrument. 2. This instrument is designed for use with 200450V systems. Avoid using with inverter outputs or circuits requiring phase correction, as this may damage the device. 3. Avoid applying pressure to the LCD screen during installation to prevent display issues such as distorted or broken characters. 4. If purchasing multiple units, do not interchange transformers between devices, as each transformer is factory calibrated to its specific instrument to maintain measurement accuracy.