For those who like to analyse their power usage data a little more in depth, the MS6202 E2 Classic power monitor is the model to go for. Just like the Elite monitor, the E2 Classic receives all the power consumption data on the indoor LCD display, giving live power use and running costs, stores the daily/weekly/monthly power consumption data, and gives averages for daily/weekly/monthly power use and costs. To add to this, the E2 Classic has a USB port so you can connect it to your PC and download the data into the Efergy software, giving you handy graphs and historical charts to further enhance your power monitoring ability. Kit includes weatherproof transmitter with CT sensor, indoor LCD display and USB cable. Transmitter and LCD display each powered by 3xAA batteries (required).