Caltech's wireless network, Caltech Secure, is available in all libraries. See Connecting to Wireless Networks for additional information.
Caltech also participates in eduroam, which provides access for visitors from other institutions. Note: this network provides visitors with access to their home institution's resources, not Caltech Library's resources.
For more information about eduroam at Caltech, please see Eduroam Wireless. Or visit About edoroam for general information.