SCALA SIEDLE reader, The ID reader for SIEDLE modules can be installed directly in SIEDLE intercom systems. The reader takes up one module space. It is suitable for use indoors and outdoors., The reader has a display with two LED fields and a piezo buzzer., The readers are also available in different colors. This means that the reader fits perfectly into existing SIEDLE solutions. , SIEDLE reader, dark gray mica, MIFARE® DESFire®