A system, and related methods and devices, is disclosed for documenting a location of installed equipment. The system includes a mobile reader and a memory. The mobile reader is configured to read a unique identification of an equipment unit and to determine a location of the equipment unit while proximate the equipment unit. The location and the unique identification of the equipment unit is associated and stored in the memory. The memory may be located in the mobile reader or in a remotely located database. The mobile reader may be an optical reader configured to read the unique identification from an optical barcode associated with the equipment unit, or the mobile reader may be an RFID reader configured to read the unique identification from an RFID tag associated with the equipment unit.