Keypad Password Door Lock for Smart HomeModel Number: 2020Material: stainless steelKeys Included: YesColor: Silver/Black/Red bronzeUnlock method: Code, Card, keyDoor Thickness Request: 35-50mmWorking Voltage: 4 pcs 1.5V LR6 alkaline batteriesLower Voltage Warning: less than 4.8V(50 times at least) Description: 1. Three independent unlocking methods: Password, card and mechanical key.2. Combined unlocking methods: Mifare card + Password.3. Color: silver/black/ red bronze4. 200 pieces of guest cards and 2 master cards available.6. 50 sets of opening passwords and 1 set master passwords.7. Reset function to ensure the safety of the lock in case losing of cards or keys.8. Stay-open settings: :3 +7+press unlock the key. (This will set the door in open status) Advantages: 1. Unlock with passcode and cards. Support Maximum 1 Master card, 200 user cards Maximum 1 Master passcode, 50 user passcode.2. Universal for Right or Left direction and Push or Pull opening3. Safe handle design to protect any break-in attempt and pass 300 thousand time test.4. Privacy Deadbolt inside the door to make sure double security.5. Powered by 4 pieces 1.5V Alkaline batteries, which can be lasted for about 1 year.Note: You will hear an alarm once your batteries are lower than 4.8 V to remind you to replace the batteries Lead Time: United States: 6-13 days Australia: 11-19 days United Kingdom: 7-15 days Canada: 15-27 days