Choose from over 13,000 locations across the UK . Prime members get unlimited deliveries at no additional cost . Dispatch to this address when you check out . 7 Monitoring Modes - This energy monitor supports multi parameters monitoring, including time, wattage, cost, cumulative power consumption, voltage, frequency, current, power factor, minimum power, maximum power, electricity price. . Real-time Monitoring - Just plug your electrical appliances into this power meter, it starts monitoring and recording the power consumption and electricity cost of the connected device, help you save energy and money. . Overload Warning - When detected the current load of connected device beyond 3680W, the LCD screen will keep blinking OVERLOAD to remind the user, protect device from damage. . Memory Function - with Acsergery built-in backup battery, the power consumption monitor could retain the data even in the power outage. Large LCD display, easy to read at a long distance. Besides, a smaller compact size than others to save more space. . Easy to Operate - Just press the FVNC button to choose the monitoring mode, COST button to set the unit electricity price, the UP and DOWN button to adjust the price. RESET button to clear all settings, friendly to elders and child. .