General description The Multifunctional AC Voltage and Current Meter AC40-300V 100A is a versatile digital power monitor designed to measure AC voltage, current, active power, electrical quantity, and energy consumption. It features a high-definition color LCD display with a wide viewing angle of 178°, ensuring clear visibility from various angles. Technical specifications Measurement accuracy: 1% ± 2 digits Measuring range: AC voltage: AC40.0-300.0V AC current: AC0-99.99A (resolution: 0.01A; displays 100.0A when exceeding 100A) Active power: 40-300V (0-30000W), 200-450V (0-45000W); resolution: 0.1W (0-9999.9W), 1W (above 9999.9W) Power display range: 0-10000KWH (maximum display 9999999KWH) Measuring speed: 2 times per second Dimensions: 79*43*48mm Installation size: 76*39mm Transformer hole diameter: 15.5mm Compatible wire size: 21-25mm² standard copper wire Lead wire extension: 0.5 to 3.5 meters Installation Connect the secondary end (green wire) of the current transformer to the