AC 100A Current Voltage Energy Hz Power Factor Modbus RS485 Module with CT+USB 28TC AC 100A Current Voltage Power Frequency Power Factor Energy RS485 Modbus Electronic Energy Module with Split CT and USB Description:AC Single Phase with RS485 Serial Port Multi-function Monitoring Module; It can measure voltage, current, power, power, frequency, power factor, maximum 100A It can display six measurement parameters on the computer when communicating through software; It can also communicate with the buyer's own micro controller (the buyer should program by themselves)! High accuracy, better compatibility will make it widely used. If you need specification and software support, please use PZEM-016: 100A Measurement Range (External Transformer) with CT + USB to 485 Split Module Specifications:Voltage:Measurement Range: 80 - 260VRresolution: 0.1VDeaching Accuracy: 0.5% CurrentMeasuring Range: 0 - 100A Starting Current: 0.02AResolution: 0.001ADmeasuring Accuracy: 0.5% Active PowerMeasuring Range: 0 - 23kW Initial Measurement Power: 0.4WRuvenance: 0.1W Display Dimension:When the data is lt; 1000W, one decimal is displayed, for example: 999.9WWhen the data is ge; 1000W, displays integer only, for example: 1000W Measurement accuracy: 0.5% Power factorMeasurement range: 0.00 - 1.00Resolution: 0.01Measurement accuracy: 1% FrequencyMeasurement range: 45Hz - 65HzResolution: 0.1HzMeasurement accuracy: 0.5% Active energyMeasurement range: 0 - 9999.99 kWhResolution: 1WhMeasurement accuracy: 0.5%Display format:When data is lt; 10kWh, the display unit is Wh(1kWh=1000Wh), such as: 9999WhWhen the data is ge; 10kWh, the display unit is kWh, such as: 9999.99kWhReset Energy: Use reset software. Over power alarm: the active power threshold can be set when the measured active power exceeds the threshold, it can alarm Communication interface: RS485 interface Package included:1 * PZEM-016 AC communication module1 * CT1 split * USB to 485 module