Which Cisco Aironet Series has a built-in digital thermometer designed to protect the radio?

Which Cisco Aironet Series has a built-in digital thermometer designed to protect the radio?

A.
Cisco Aironet 1500 Series

B.
Cisco Aironet 1400 Series

C.
Cisco Aironet 1300 Series

D.
Cisco Aironet 1200 Series