ESY-Pen and ESY-App, a duo for everything: (1) parameterization, (2) remote control (3) light measurement, (4) project management. Simple and quick commissioning of complex lighting controls. Easy to use for every user. Independent of physical hardware interfaces thanks to Bluetooth. Compatible with all smart devices (iOS, Android). Backwards compatible with all current presence and motion detectors and emergency lights/controls from ESYLUX that can be controlled remotely. Can be used as a table device for individual light measurement/light control. Also suitable for operating smartphones/tablets. Easy management of settings in project libraries.