Take control of your energy consumption with our powerful and versatile Power Meter! **Powerful Functionality:** This power meter accurately measures and calculates the energy consumption and cost of connected devices. It helps you monitor time, voltage, active power, and energy cost, leading to significant energy and money savings. **Clear LCD Display:** The meter features an easy-to-read LCD display that shows various data, including energy consumption (0.00-9999kWh), active power (0.1-3,680W), supply voltage (200-276V), and current (0.00-99.99A). This makes it simple to read and record data, even in the dark. **Built-in Rechargeable Battery:** Equipped with a built-in 3.6V rechargeable NI-MH battery, the meter can store readings, allowing you to move and view data without losing information – incredibly practical! **Highly Versatile:** This electricity meter can measure power consumption, voltage, current, and CO2 emissions from various devices, and automatically calculate your electricity bill. It's perfect for printers, TVs, set-top boxes, routers, and more.