Real-time Monitoring: Just connect your electrical equipment to this power consumption meter. It helps you understand the electricity bills of your home appliances by monitoring and recording the electricity consumption and electricity bills of connected devices. Upgrade LCD Display: With a large and clear monitor backlit, the watt meter can display the data clearer and more visible no matter day or night. A wide viewing angle makes it great for reading and recording the data. Overload Protection: Once the whole power exceeds the 3680W of the electricity usage monitor, the LCD screen will display "OVERLOAD" with booming noise to remind the user. Easy to Operate: There are several buttons for easy operation. The "FVNC" button is for the monitoring mode, the "COST" button for adjusting the power cost of the unit, and the "UP" and "DOWN" buttons for adjusting the cost. Memory Function: With a 3.6V rechargeable battery(NI-MH), the power monitor can store electricity. which allows the meter to be moved and viewed without losing readings.