Description Features: 1. 7 Monitoring Modes: This outlet power meter supports monitoring time, power, cost, cumulative power consumption, voltage, frequency, current, power factor, minimum power, maximum power, and electricity price. 2. Real-time Monitoring: Simply plug your electrical device into this power consumption meter. It helps you understand your household appliance electricity bills by monitoring and recording the power consumption and electricity bills of connected devices. 3. Backlight and Memory Function: Built-in buffer battery; this power meter can store data when the power is off. Press any key to wake up the backlight for 10 seconds to view data in the dark. 4. Overload Warning: When the current load of the connected device exceeds 3680W, the LCD screen will continuously flash overload, reminding the user and protecting the connected device and the ammeter socket itself from damage. 5. Easy to Use: Simply press the FVNC button on the energy cost chart to select the monitoring mode, the COST button adjusts the electricity price per unit, and the UP and DOWN buttons adjust the price. The reset button clears all settings, suitable for seniors and children. Specifications: Color: White Measurement Current Accuracy: +/-2% Measurement Power Accuracy: +/-2% Battery: 3.6V NI-MH, Rechargeable Battery Power: 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: Backlight, Normal Package Includes: 1 x Outlet Power Meter