Everyone already has a smart phone and therefore we have adapted the time control, of the digital switching clock SHT-7 in the relay-repertoire of ELKO EP. It controls switching depending on the manual setting of daily or weekly programs. In total, you can set up to 100 different switching programs for one device. The installation and commissioning of equipment works very simply, using a smartphone. With Near Field Communication, which allows two devices to communicate wirelessly within a few ce