Android Question Can App. check for presence of certain Wifi ?

Dear sir,

Greetings,
There is way to make B4A check if certain Wifi is found?
It's not important if connect to this network, just check if found or not.

By the way I still need to find way to make attendance for students in the class, (I''ll add GPS constrain + presence of certain access point (my mobile' hot spot))
Thanks on advance for any help

Best regards