This outlet power meter accurately monitors your household appliances with 11 monitoring modes. Track power (W), cumulative energy consumption (kWh), voltage (V), frequency (Hz), current (A), CO2 emissions (kgCO2), power factor, minimum and maximum power, electricity cost, and cumulative time. The large, clear backlit LCD display is easy to read and use in dark areas. The backlight duration is 10 minutes (default), but can be turned off by pressing the DOWN button. Press any key to turn it back on. With a built-in high-precision chip, this energy meter automatically saves data when power is interrupted, ensuring permanent data storage. A reset button allows you to clear all data, while the MODE+DOWN buttons clear measurement data while retaining settings. Unplug this energy meter to adjust and view data. It's suitable for various household appliances, including toasters, coffee makers, refrigerators, air conditioners, computers, game consoles, printers, TVs, stereo systems, ovens, etc. When power, consumption, or energy cost reaches the set value, "OVERLOAD", "KWh ALARM", or "COST ALARM" will flash on the display and LED indicators will alert users. The default overload power is 3680W (adjustable from 0 to 3680W). Perfect for monitoring the energy consumption of your appliances.