Hi Jay,
That "ASIAIR_Dev_Fei" is just an example of the WiFi SSID that they were using when ZWO created the document. (Perhaps a developer at ZWO whose name is Fei.)
The SSID that you see (ASIAIR_2692ddb9) is the correct one to use. If you look at the side of the ASIAIR Raspberry Pi enclosure, you should see the same SSID printed on a small sticker, together with a QR code. The "2692ddb9" is part of the ARM chip's processor ID that is unique to every Raspberry Pi.
ASIAIR_2692ddb9 should also be the SSID that you select in your tablet's WiFi network setting.
You can change your ASIAIR's SSID to something else; but I would recommend not changing it unless there is a second ASIAIR nearby to confuse you.
(I have changed my two ASIAIR SSID to ASIAIR_1 and ASIAIR_2, for example, so I can easily identify which is which.)
Clear skies,
Chen