Feature: 1. Equipped with a large‑screen digital LCD display, high definition, easy to read the value. 2. Power consumption monitor, can detect power consumption and reduce unnecessary energy consumption. 3. It has alarm functions such as overload alarm, electricity alarm, cost alarm and LED indicator. 4. When the entire power exceeds the rated power of the monitor, the screen displays "overload" with an audio reminder. 5. Support measurement of power (W), energy (kWh), voltage, amperage, power factor, cost, minimum and maximum power. Specification: Item Type: Power Meter Socket Material: ABS Weight: Approx. 220g / 7.8oz Product Size: Approx. 15.5x7x6.5cm / 6.1x2.8x2.6in Battery Type: Ni-MH Battery Battery Model: NIMH Nominal Battery Capacity: 2200mAh Energy Meter Display Power Consumption: 0.5W High Frequency Display: 50Hz Timing Display Range: 0s-9999 Days Current Display (Amps): 0.000A-15.000A High Frequency Display: 0Hz-9999Hz Price Display Range: 0.00COST/KWH-99.99COST/KWH Total KWh and Cost Display: 0.000KWh-9999KWh. Package List: 1 x Power Meter Socket1 x English Manual Note: 1.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.