The TimerOn APP allows to manage and program the GEWISS 90 TMR digital time switches in a simple and direct way, using Bluetooth or NFC technology. With TimerOn is possible to: - create daily and weekly programs for ON/OFF switching electricity. - associate, synchronize and change on your own the settings of the time switches - read, modify and copy the programs to the associated time switches - update the date, hour and localization of the time switches associated with smartphone or t