Features 1、Mainly used to measure AC voltage, current, active power, frequency, power factor and active energy 2、Without display function, the data is read via TTL interface 3、This product contains PC software 4、Equipped with TTL to USB data cable 5、The measuring range is AC 80-260V, maximum current can reach 100A Specification Item Type: Module Measuring Range: AC 80-260v Resolution: 0.1V Accuracy: 0.5% Current: Measuring Range: 0-100A Resolution: 0.001A Accuracy: 0.5% Active Power: Measuring Range: 0-23kw Starting Power: 0.4w Resolution: 0.1w Power Factor: Measuring Range: 0.00-1.00 Resolution: 0.01 Accuracy: 0.5% Frequency: Range: 45Hz-65Hz Resolution: 0.1Hz Accuracy: 0.5% Active Energy: Measuring Range: 0-9999.99kWh Resolution: 1Wh Accuracy: 0.5% Size: Approx. 78 x 37 x 19mm / 3.1 x 1.5 x 0.7in Package List 1 x Unit 1 x Cable 1 x CT 1 x User Manual