Specification: Item Type: Smart Door Lock with Handle Material: Aluminum alloy, electronic components Lock Cylinder Material: 304 stainless steel (iron lock cylinder can also be selected) Unlocking Method: IC card, fingerprint, password, mechanical key, mobile phone APP control Fingerprint Collection Method: Semiconductor Low Battery Alarm and Emergency USB Charging Port: Support Virtual Password: Enter any number before or after the real password, total password length does not exceed 18 characters Normally Open Mode: When you do not want to lock the door, you can set the normally open mode Fingerprint + Password + Card Storage: 300 groups Fingerprints Stored: 110 groups Administrator Settings: 9 Function: After 5 wrong unlocks, the system will automatically lock for 30 seconds Unlock Time: ≤ 0.5 seconds Working Temperature: -25℃ to 60℃ Working Humidity: 20-90%RH (non condensing) Applicable Door Thickness: Approx. 35-50mm / 1.4-2.0in,thickness is less than or greater than can also be selected Working Voltage: 6V DC, 4PCS 1.5V AAA batteries (Not included), unlock 10 times a day, working time up to 182 days Package List: 2 x Handle Door Lock 2 x Accessory Package 2 x Key 2 x IC Card 1 x Installation Diagram 1 x Manual Note: 4PCS AAA batteries not included.