BAYLINKNotes on life in the Bay
Deals & freebies · SAN FRANCISCO PUBLIC LIBRARYBorrow a radon detector free with an SFPL card
Ongoing loan service · Up to 21 daysCheck the official terms for applicable locations
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An SFPL card is required; place holds online. Devices are first come, first served, may be borrowed for up to 21 days, and must be returned.
The atrium of San Francisco Public Library's Main Library, photographed in 2013. Archival photo.
Archive photo · 2013SparkFun Electronics · CC BY 2.0(opens in a new tab)Image license(opens in a new tab)Resized and compressed; cropped to fit the card
How to use this benefit
A home-device lending service introduced in 2026, available through all branches and returnable to any branch. Check the catalog and hold queue first; the device is a free loan.
Check the official page for current eligibility, availability and participating locations.