ZKTeco GL300 Fingerprint, Card & PIN Glass Door Lock

• ZKTeco GL300 smart lock with fingerprint, password, and RFID card access. • Designed for 10-12mm compatible glass doors with a no-drill fitting system. • Reversible design for left or right-hand opening doors. • Stores up to 100 fingerprints, 100 passwords, and 100 cards. • Features an integrated doorbell and low-battery warning indicator. • Emergency power input via micro-USB port. • Powered by four AA alkaline batteries (not included). • Constructed from durable zinc-alloy and ABS plastic.