Description Features: 1. 7 monitoring modes: There are 7 monitoring modes in total, this socket 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: Just connect your electrical equipment to this power consumption meter. Electricity meters help you understand the electricity bills of your home appliances by monitoring and recording the electricity consumption and electricity bills of connected devices. 3. Backlight and memory function: Built-in buffer battery, this power meter can store data when power is off. Press any key to wake up the backlight for 10 seconds to view data in the dark. 4. Overload warning: When it is detected that the current load of the connected device exceeds 3680W, the LCD screen keeps flashing overload reminds the user and protects the connected device and the ammeter socket itself from damage. 5. Easy to use: Just press FVNC. The button on the energy cost table selects the monitoring mode, the COST button adjusts the electricity price of the unit, and the UP and DOWN buttons adjust the price. Reset button removes all settings, suitable for seniors and boys. Specifications: Color: White Measuring Current Accuracy: +/-2% Measuring 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 Include: 1 x Electricity Meter for Socket