At high powers, the energy cost measurement device has a largely good measurement accuracy. In my kettle a maximum power of 2000 watts the unit had gauged the exact value of 1999 watts in a practical test.
A small downside, the Techno Line Cost Control can not detect minor consumption. How much a TV or a DVD player consumes in standby, so it can not or difficult to identify this model. The lowest performance measurement limit is approximately 3 watts. For this you get two points deduction. At current overloads a warning symbol is displayed on the screen
A very useful feature, however, are the monthly and annual forecast and the overall power consumption.
Conclusion:
To determine values and energy costs at high consumption levels of the favorable energy cost meter is highly recommended. However, if you want to diagnose low standby values should rather opt for another model, which then should be to purchase more expensive.
