Scanners range in size from larger units for desktop computing to compact scanners that plug almost flush into a USB port. If you’re worried about a fingerprint scanner being exposed to the elements, search for one that’s waterproof.

While the majority are constructed of sturdy plastic, some offer an all-metal design. This is particularly true if you plan to use the scanner with a laptop for mobile computing. Whether you’re using it for the home or office, a fingerprint scanner should be rugged and durable. Quite often these scanners can also work with popular password managers, so you will have access to a wide range of websites with the press or swipe of a finger. Some can help to secure and encrypt folders and files, while others can be used to log into popular websites, such as Facebook.

Key considerations What they doĪll fingerprint scanners act as a gate to guard access to your computer, but some do much more. Fingerprint scanners operate using one of three different methods to map fingerprints: optical (light), capacitive (electrical), or ultrasonic (sound).