Keypad with Wiegand Output. The HID-2 Keypad with Wiegand output allows keyless entry for select Viking apartment or office entry systems. The HID-2 Keypad features standard 26-bit Wiegand interfacing, a metal enclosure with potted electronics and a pigtail connection for indoor or outdoor applications. The Keypad interfaces with the AES-2000 Accessible Entry System. Up to 32 entry points with HID-2 Keypads may be added to the AES-2000. Alternatively, the HID-2 can be used with the ES-1 Stand Alone Door Entry Controller, and the C-4000 Four Door Entry Controller. Applications Compatible with Viking s AES-2000 Accessible Entry System Compatible with Viking s C-4000 Apartment/Office Entry Controller Compatible with Viking s ES-1 Apartment/Office Entry Controller Compatible with Viking s ES-3 Apartment/Office Entry Controller Features Standard 26-bit Wiegand interface Potted for indoor or outdoor use Pigtail connection for easy installation Red LED shows activity Screw protection caps Beep tones acknowledge key strokes Programmable Facility Code stored in nonvolatile memory (no batteries required) One year warranty Made in the USA.