The ekey uno fingerprint with battery and wireless functionality in black for Nuki is a biometric sensor terminal designed to capture fingerprint images using a surface sensor. It can store up to 200 fingerprints or 20 users. The ekey uno fingerprint is used to identify authorized individuals and subsequently unlock doors. It is intended for use in both residential and commercial settings and is suitable for fixed installation on immovable structures such as masonry, both indoors and outdoors.