Linear's 2-N-1 125 kHz Proximity Reader works with certain HID, AWID, and Secura Key Series protocols. The proximity reader is designed to fulfil two different mounting requirements - without needing any additional hardware! The 2-N-1 can be installed as either a mullion-mount reader or, when paired with the provided adapter plate, turns the reader into a single-gang electrical box style reader. Customers get a clean, low profile for both mullion and single-gang installations ready to install right out of the box for either configuration. Linear's cards and tags do not contain batteries, requiring no maintenance. Reduce your stock and never be on the job again without the right model reader.