Abstract: An inhome display device and method are provided for reading and monitoring consumed hot and cold water that includes a plurality of water meters which measure hot and cold water consumption and encrypt the consumption data, one internal or external radio module per water meter for transmitting the encrypted consumption data, a gateway for one or multiple water meters for receiving and transmitting the encrypted consumption data to a remote backend server. The consumption data is decrypted, processed and made available in the remote backend server. The consumption data of a water meter is retrievable from the remote backend server via at least one central inhome display and displayed on the at least one central inhome display.