"color as shown Size: 13.4 x 8.3 x 6.4cm Weight: 130 grams Save Energy and Money?You can check the power quality by monitoring voltage, amperage, frequency and power factor. And you'll know if it's time for a new air conditioner. The energy meter socket also allows you to enter the cost of electricity from your utility provider so you can easily identify which appliance in your home is costing you the most. 11 Monitoring ModesThis digital energy meter socket supports multiple parameters monitoring, including time, power (W), accumulated electricity consumption (kWh), voltage (V), frequency (Hz), current (A), CO2 emissions (kgCO2), Power factor, minimum and maximum power, costs, price of electricity. Multiple ProtectionWhen the performance, power consumption or power cost reaches the set value, ""OVERLOAD"", ""KWh ALARM"" or ""COST ALARM"" flashes on the screen and LED indicators to warn users of damage. Ideal for monitoring the energy consumption of household appliances. Data Storage and ResetBuilt-in rechargeable battery to keep your measurement data and measurement settings. Use the MODE + DOWN keys to delete only the measurement data but keep the measurement setting. The power consumption meter is made of flame retardant materials, uses a large LCD display (Without backlight). Wide UsesCE certified. The power meter socket to help you monitor and control electricity consumption. Save energy and save money on bills. Suitable for computers, televisions, refrigerators, washing machines, dryers, ovens, printers, game consoles, etc."