Features: 1LCD Monitor: Electricity usage monitor has a large clear LCD screen that is easy to read and can be used with confidence 2Electricity Usage Monitor: Electricity usage monitor helps you reduce energy consumption and easily conduct voltage and current power detection 3Functions and Parameters: Amps meter with overload alarm power consumption alarm cost alarm LED light indication etc. With parameters such as power (W) energy (kWh) voltage amperage power factor cost minimum and maximum power 4Overload Protection: When the whole power exceeds the rated power of the monitor the LCD screen will display overload accompanied by a rumbling noise to remind the user 5ABS Material: Kilowatt meter is made of ABS material which is wearable and durable and has a long service life Specification: Item Type: Watt MeterMaterial: ABSProduct Size: Approx. 16 x 7.3 x 7.5cm / 6.3 x 2.9 x 3.0in Use: Power Measurement SocketBattery Type: Button Battery (with built in battery delivery) Battery Type: NiMHBattery Nominal capacity (unit: mAh): 20AC Frequency: 50HzOperating Current: Maximum16A Wattage Display (wattage): 0W to3680wCurrent Display (AMPS): 0.0A to 16.0ACost Display Range: 0.00 /kWh to 99.99 /kWh Total Kwh and Cost Display: 0.000 kW to 9999 kW 0.00 EUR to 9999 EURWeight: Approx. 202g/7.1oz Package List: 1 x Watt Meter Note: Shipped with Built in Battery