Function 1. Voltage:Measurement range: 80 ~ 260V.Resolution: 01VMeasurement accuracy: 05%2. currentMeasuring range: 0 ~ 10A (PZEM-004T-10A); 0 ~ 100A (PZEM-004T-100A).Initial measurement current: 001A (PZEM-004T-10A); 002A (PZEM-004T-100A).Resolution: 0001AMeasurement accuracy: 05%3. Active :Measuring range: 0 ~ 23kW (PZEM-004T-10A); 0 ~ 23kW (PZEM-004T-100A).Initial measurement :04WResolution: 01WDisplay format:Less than1000W, display one decimal place, for example: 9999Wgreater than equal1000W, only display whole numbers, for example: 1000WMeasurement accuracy: 05%4. factor:Measurement range: 000 ~ 100Resolution: 001Measurement accuracy: 1%5, frequencyMeasuring range: 45Hz ~ 65HzResolution: 01HzMeasurement accuracy: 05%6, active energyMeasuring range: 0 ~ 999999kWhResolution: 1WhMeasurement accuracy: 05%Display format:Less than10kWh, display unit is Wh (1kWh = 1000Wh), for example: 9999Whgreater than equal10kWh, display unit is kWh, for example: 999999kWhReset energy: Use software reset. failure alarm:You can set the active threshold. When the measured active exceeds the threshold,Can report to policeCommunication Interface:RS485 interfacecolour:green + blackMaterial:plasticPackage Contents:1 x Digital Multi-function Meter1 x CoilOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.