Now the fight against rocketing electricity bills and climate change just got even easier with the new improved OWL wireless electricity monitor. The stylish portable device can help save hundreds of pounds off your electricity bill by providing up to the second information on the exact amount of electricity you are using in pounds and pence. This means you can see the exact financial gain of turning off electrical devices at home. Whether it's turning off at the plug rather than just using standby or simply turning off a light, the OWL shows you the exact cash impact of changing your behaviour, which can be hundreds of pounds for the average home. Building on the success of original OWL, new features include the following: An accumulative function which lets you see your cost accumulate over any period you choose, be it daily, weekly or monthly. You can then start to track changes over time which allows you to fine tune your energy saving strategy even better than before. The new multiple tariff function means you can set your OWL to factor in a range of tariffs (Economy 7, Night-time etc) to create an even more accurate picture of your usage. A much improved battery life now gives up to 24 months with the transmitter & 12 months on the display.