ZKTeco AL20B Fingerprint & Bluetooth Smart Door Lock

• ZKTeco AL20B smart lever lock with multiple access methods: fingerprint, PIN code, Bluetooth-connected smartphone, or mechanical key. • Stores up to 100 fingerprints and 100 PIN codes for user management. • Features a touch keypad, low-battery warning indicator, and lockout mode for enhanced security. • Zinc-alloy body construction, suitable for doors with a thickness of 30-54 mm. • Powered by 4 AA alkaline batteries, with an emergency 9V battery power connection option. • Brand new condition, ideal for residential and commercial applications. • Please verify door measurements and fitting requirements before purchase.