Provide keyless access control to your all-glass interior openings with the Bruken DL-GS3550 Digital Lock from ASSA ABLOY Glass Solutions. This field reversible device is ideal for retrofit applications and features three modes of access, including fingerprint identification, numeric passcode, and smart card. This multi-user lock requires no glass fabrication for easy installation and is compatible with single or pairs of glass doors that are 3/8" - 1/2" thick. Its sleek interface provides visible operation status and shows battery voltage in real time, warning the user when power is low to avoid lockout situations. In addition, this cutting-edge product features multiple language options, a volume adjustment function, the ability to view a detailed record of usage, and more.