There are a few reasons. There is no NFC option. The swipe slot requires too much precision. But the #1 reason?
They emit exactly the same tone for “success, please walk through” as “fail! you will break your pelvis if you proceed!”
There are a few reasons. There is no NFC option. The swipe slot requires too much precision. But the #1 reason?
They emit exactly the same tone for “success, please walk through” as “fail! you will break your pelvis if you proceed!”