Features: 1. 7 Monitoring Modes: A total of 7 monitoring modes this power meter for socket supports monitoring time power costs accumulated power consumption voltage frequency current power factor minimals power maximum power and electricity price. 2. Real Time Monitoring: Simply connect your electrical devices to this power consumption meter. The energy meter starts with monitoring and recording the power consumption and the electricity costs of the connected device helping you know the electricity costs of your household appliance. 3. Backlight and Memory Function: With the built-in buffer battery this power meter can store data in the event of a power failure. Press any button to wake up the backlight for 10 seconds to check the data in the dark. 4. Overload Warning: When a current load of the connected device is detected of more than 3680W the LCD screen constantly flashes Overload to remind the user and protect the connected device and the current meter socket itself from damage. 5. Easy e: Simply press the FVNC button from the energy cost meter to select the monitoring mode the COST button to adjust the power price of the unit the UP and DOWN buttons to adjust the price. Reset button to delete all settings suitable for seniors and boys. Specification: Color: White Measure current accuracy: +/-2% Measure power 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 Ordinary Package Included: 1 x Electricity Meter For Socket