The Proximity Metal Reader is for use with Switch2 and Net2 systems. The reader is contained in cast metal housing which makes it ideally suitable for installing onto metal door frames, car park reader posts etc. Proximity Readers read a token when the token is held within close proximity. When the token has been read the controller looks up all the access permissions of that user and either grants or denies access. The green LED flashes if access is granted, and the red if access is denied.