【Energy Monitoring】Measure and calculate the energy consumption and cost of your connected devices. With a total of 7 monitoring modes, this power meter supports monitoring of time, power, cost, cumulative energy consumption, voltage, frequency, current, power factor, maximum power, and the price of electricity. 【Overload Protection】Electrical voltage: 230 V AC 50 Hz, maximum current: 16 amps, maximum power: 3680 W. If the total power exceeds the rated power of 3680 W for the outlet power meter, \"Overload\" will flash on the screen to warn you that the appliance must be disconnected from the power supply to avoid overheating. 【Easy to Use】Press the \"FVNC\" button to DALIMATION MODE to select the \"Cost\" button Price for single, \"UP\" and \"Down\" buttons to adjust the price. Reset button to clear all settings. With Dual Rate mode, you can set two prices simultaneously to calculate and compare electricity costs at different times. 【Measure Various Parameters】With a variety of measurement parameters such as power (W), energy (KWH), voltage (V), amperage, power factor, minimum and maximum costs, the energy cost measurement gives you the most basic data about your household current. Measurement and calculation of energy consumption, active power (0.1 - 3 680 watts), easy to read and record data voltage. Suitable for many electrical appliances, bread machine, coffee maker, computers, game consoles, printers, TVs, hi-fi chain, DVD, radiator, reader-ray, oven, etc.