The PR-312S-PQ ENFORCER is designed to secure controlled access. It is designed to be both stylish and small to easily blend in with almost any residential, commercial and industrial site. While it is simple enough to deploy in small businesses, it also features the programming capability to meet the needs of mid-size and enterprise companies. It can read cards from up to 6 in. away, making it easy to use without touching the device. It is a stand-alone reader with internal memory for up to 500 user cards, five super user cards and a master card. The door unlock output can be programmed to operate for up to 60 sec., to toggle on or off, and to operate in either the fail-safe or the fail-secure mode. LEDs clearly show the status of the reader.