Three WS4 web access readers are available: an MTPADPBK-MO reader (combined keypad and Mifare proximity reader offering double security via an access code and via Mifare fob/card), a panel mount reader XPROX-MO and also an MTPXBK-MO reader (a compact 13.56Mhz Mifare proximity reader). These readers will operate with Mifare Classic, Ultralight and Desfire compatible fobs and cards that operate at 13.56MHz frequency. The WS4 readers operate on 12Vdc supplied from the WS4 controller and are low current consumption readers. Both are programmable via the WS4 web access solution software and via the WS4 smartphone app (available for download from Google Play for android devices and the App Store for iOS devices). A touch sensitive exit button is also available for the WS4 access system (MTTBK-EXIT). It can either function as an independent manually controlled push button or alternatively, be connected to the WS4 controller to facilitate the exit form a secure area. Both readers and the exit button are manufactured in a surface mount IP65 rated, impact resistant black ABS plastic housing.