REAL-TIME MONITORING - Measure and calculate power (w), energy (kWh), current (A), voltage (V), frequency (Hz), CO2 emissions (kgCO2),power, cost, maximum supply voltage, power, power factor, frequency and CO2 equivalent in real time.You can also view this cumulative data by day, week or month.DOUBLE RATE AND SINGLE RATE - Added dual rate mode, you can set two electricity rates at different times as needed to calculate electricity costs more accurately.OVERLOAD ALERT - You can adjust the power of the security alarm (not to exceed 3680W).When the load connected to the outlet exceeds the set value, the large LCD screen will flash OVERLOAD to warn the user.It helps you control the power consumption of electrical equipment and ensure electrical safety.DATA RETENTION - With the built-in battery, even if the meter is unplugged from the outlet, the latest data will be saved.Don't worry about data loss due to sudden power outagePARAMENTS - electrical voltage: 230V AC 50Hz, maximum current: 16A, maximum power: 3680W, accuracy: +/- 2%, operating temperature: 0C - 40C. We work to offer customers the best products and services.If you encounter any problems, please contact us by email.