D52-2066 6-in-1 Digital Single Phase Energy Meter Tester Din Rail AC Monitor Voltage Current Power Factor Active KWH AC 40V~300V 100A Electricity Usage Monitor Specifications: Type: Built-in transformer / External transformer (Optional) Measuring Range: AC 40-300V / AC 250-450V (Optional) Model: D52-2066 Material: ABS Measurement Accuracy: 1%±2 words Alternating Current: AC 0-100A, current display resolution is 0.01A Power Frequency: 45.0Hz-65.0Hz Power Fator: 0.00-1.00PF Active Power: Measuring range is 0-45000W, the display resolution between 0-9999.9W is 0.1W, the rest is 1W Electricity: Measurement range is 0-99999kwh, 0-999.99kwh minimum display resolution is 0.01kwh Measuring Speed: About 2 times per second Mounting Method: Rail type Item Size: 80 * 54 * 64mm / 3.15 * 2.12 * 2.51in Item Weight: 122g / 4.30oz Package Weight: 143g / 5.04oz Package Size: 9 * 7 * 6cm / 3.54 * 2.75 * 2.36in