... 70 percent compared to the classic notepad solution - according to Prof. Dr. Rigo Herold from the West Saxon University of Applied Sciences in Zwickau. "Many individual steps such as manual data entry are no longer necessary. In addition, the susceptibility to errors is significantly reduced compared to the manual process. According to Prof. Herold, the process is particularly effective when there are several meters next to each other, as in a block of flats. Another decisive advantage is that the data goggles give the meter reader a virtually free hand: "The data goggles have decisive advantages, especially where doors have to be opened and screws loosened, as they leave both hands free."