A 10,000 user stand alone single channel access controller and reader in one. Simple to program and maintain control. Add and delete users as required via management card. This unit is the simplest stand alone access controller we have ever found. Record a management card – add and delete user cards as required. If a card or tag gets lost, stolen or not returned, simply use the supplied keypad to delete the user. The unit itself is neat and tidy – a robust outdoor unit. Access control at an affordable price. All you need to get your system up and running is the “WM4-EM” reader and controller and as many “PROXTAG” or “PROXCARD” as you require. The supplied keypad is only required if you wish to individually remove a lost tag.