elMaster is a CAD application for electrical and instrumentation design. In elMaster, you can create and update diagrams and drawings such as circuit diagrams and electrical enclosure layouts. elMaster has a built in symbol administration where users can create and administrate complete symbol libraries.  The program automatically handles break-up and mending of connection lines when symbols are inserted or deleted and when the whole parts of diagram are copied, moved or deleted.

elMaster has network support for symbol library and lists to share them in larger project groups. There is also support for generation of apparatus lists, wire/cable lists, BOM-lists, I/O lists, table of content and others. During the drawing work, symbols can be connected to an existing object in database by look-up. Alternatively, the new data object can directly be created from drawing environment.