Features: 1. 7 Monitoring Modes: This outlet power meter supports 7 monitoring modes, tracking time, energy costs, accumulated power consumption, voltage, frequency, current, power factor, minimum power, maximum power, and electricity price. 2. Real-Time Monitoring: Simply plug your appliances into this power consumption meter. The energy meter starts monitoring and recording the power consumption and electricity costs of the connected device, helping you understand your appliance's energy usage. 3. Backlight & Memory Function: With a built-in buffer battery, this electricity meter can store data in case of power outages. Press any button to activate the backlight for 10 seconds to check data in the dark. 4. Overload Warning: When a power load exceeding 3680W is detected, the LCD screen continuously flashes 'Overload' to remind the user and protect the connected device and the power meter outlet itself from damage. 5. Easy to Use: Simply press the FVNC button on the energy cost meter to select the monitoring mode, the COST button to adjust the unit's electricity price, and the UP and DOWN buttons to fine-tune the price. Reset button clears all settings, making it suitable for seniors and kids. Specification: Color: White Current Measuring Accuracy: +/-2% Power Measuring Accuracy: +/-2% Battery: 3.6V NI-MH Rechargeable Battery Power Supply: 230V AC 50Hz Max. Load: 16A 3680W Current: 0.0A - 16.0A Product Size: 12.7 x 6 x 7.33cm Product Weight: 193.2g Optional: Backlit Standard Package Includes: 1 x Outlet Power Meter