fingerprint alarm door lock S280 zinc alloy competitive price three unlocking ways CE, FCC, RoHS fingerprint alarm door lock S280 -Stylish design, Back-lit keypad-Stainless stee 304 core structural elements of lock mortise and lock latches-Adopt the luxury car painting, ensuring the color quality-Door thickness: 35-50mm-Fingerprint user capacity 110-Unlocking ways: fingerprint,code,mechanical key-Available in both single latch and five latches   Core Value of Onlense fingerprint door lock:    Technical Parameter :ModelS280MaterialZinc AlloyFront Panel ColorsSiver/GoldenOperating Environment？ Temperature-20°C ~ 55°C？ Humidity20 %~ 80%？ Power Supply4 x 1.5V AA Battery？ Low battery warning voltage< 4.8VBackup Unlock MechanismEmergency battery & Mechanical key CE, RohS and FC Certificate ONLENSE is one of the leading manufacturer of door locks in Guangzhou, ChinaOur products are certified by renowned International Quality Institution with its excellent quality and reliability