YK-868The unit is a single door multifunction standalone access controller or a Wiegand output keypad or card reader. It is housed in a strong, sturdy and vandal-proof zinc alloy enclosure. The electronics are fully potted, so the unit is waterproof and conforms to IP66. The default mode of is 'Controller Mode'. If you need to work as a Wiegand reader, please change the mode to 'Reader Mode'.Instructions on how to change from 'Controller Mode' to 'Reader Mode' are found in the Changing to Reader Mode section in this manual.