With its soft form language due the presence detector thePrema a new corporate design. As the central functional unit, the lens is at the forefront of design and replaced the classical case. The teardrop shape of the complex to be calculated lens gives the detector a flowing, floating form. The lens is supported by a double-layered, transparent plastic ring that shine through the color of the background and makes the presence detector virtually invisible. The discreet Theben logo sits on the second level of the outer ring member and brings additional depth. With the new lens shape Theben ensures a unique feature.