【 Monitoring Electric Usage and Know Cost Intuitively 】 Power consumption meter can measure power (W), volts, amps, frequency, power factor, maximum and minimum power (W), cumulative time and energy (kWh), and calculate cost automatically after price-setting; monitoring home energy usage and help you to save electricity cost【 Large Clear LCD Display with Backlight 】 Electricity monitor kilowatt meter has a wide view angle and clear-digit display; easy to read and operate the electricity monitor in dark areas with the backlit clear LCD display【 Long Time Data Hold Memory Function 】 Come with built-in rechargeable battery backup, the watt meter power analyzer can hold data up to 90 days when coming across a power outage or plugging out the meter from the outlet; all data includes the cost setting will go to zero once press the reset button【 Potable and Takes up 1 Outlet Only 】 Compact size; power meter socket plug leaves the lower wall outlet available when plugging into the upper outlet; made of high-quality fire-resistant material; friendly after-sale customer service and 1-year limited warranty; Note: do not compatible with AC inverter and solar power inverter【 3680W Overload Indication 】 This power monitor meter can measure 110-130 Vac & 200-240 Vac voltage (Note: Label on watt meter back only shows 110-130 Vac low volt range due to certification requirements); 0-16A AMP; 0-3680W wattage, and indicate overload when load up to 3680W; Class 1.0 accuracy standard with 0.1W, 0.1V, 0.001A and 0.001kWh resolution Product Description Suraielec is an international brand focused on various power solutions. We dedicated to developing new technologies, integrated solutions, and provides a diverse line of power products. Suraielec Electrical Power Consumption Meter Socket, Plug in Watt Hour Meter Electricity Energy Usage Monitor Note: The test range of this watt meter is 110-130 & 200-240 Vac, but the label on the product back only shows a low volt range.This wattage meter only compatible with NEMA 5-15P plug & 5-15R outlet, need an extra adapter to work with other plugs.DO NOT work with AC inverter and solar panel inverter. Specifications: Input Voltage: 120V, 60HZ Operating Current: 15A Accuracy Standard: Class 1.0 Power Dissipation: < 0.8W Wide Measuring Display Range Dual Voltage Range: 110-130 & 200-240 VacFrequency: 50 / 60HzWattage: 0.0-3680WCurrent: 0.000-16.00AOverload Indication: 3680WTime: 0 Second-9999daysCost Range: 0.00-99.99/KWHTotal KWH: 0.000-9999KWHTotal Cost: 0.00-9999 Auto Cost Calculator Watt meter power consumption analyzer can calculate the power expenses of the measured appliance automatically.The cost function needs to be activated by setting the cost firstly.Note: All data includes the cost setting will go to zero once you press the reset button. Up to 90 days Long Time Data Hold Memory Function Electric kilowatt usage meter has a built-in rechargeable battery backup which will hold the data when coming across a power outage or plugging out the meter from the outlet. Easy to Read and Operate in Dark Areas Large clear LCD display with a backlight will lit when connecting to the power. 3680W Overload Protection When the load is over 3680W, LED displays the "OVERLOAD" with booming noise to warn the users. Compact size and 3 Prong Plug Compact power meter socket plug leaves the lower wall outlet available when plugging into the upper outlet.