Feature:1. Power consumption monitor, can help you reduce power consumption and save money.2. Automatic calculation of electricity bills, while measuring power consumption, voltage, current, timing, etc. of the electrical appliances used.3. With a largesize digital LCD display, with high definition, the measured value can be displayed intuitively.4. Overload alarm, when the current exceeds 16A or the power exceeds 1800W, the "overload alarm" icon flashes.5. When the detected power value is less than 1.0W, it is regarded as local power consumption and time will not be accumulated.6. Builtin 1.5V rechargeable battery can store power, and the meter can be moved and viewed without losing the reading.Specification:Item Type: Power MeterMaterial: ABSModel: DDS109LDisplay Mode: LCD Digital DisplayFrequency Display: 47-63HzWorking Current: Maximum 13AWattage Display: 0W-9999WCurrent Display: 0.0A-9999APrice Display Range: 0.00E / KWH-99.99EKWHTotal KWh and Cost Display: 0.000KWH-9999KWH, 0.00E-9999EBuilt-In Battery: 1.5VBattery Type: Lithium Battery 2400mAh.Package List:1 x Power Meter1 x English Manual