Security Electronic Password Smart Door Lock

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Features: Exquisite appearance, rational structure, safe and reliable. High quality, low price, safe&cheap. Very easy to operate, suitable for office, house and apartment. Especial ly suitable for installation by nonprofessionals In installation, just use the existing knob lock hole, no need to open another holes. Waterproof. Suitable for left open door, right open door. With Emergency power input, Mechanical key Specification: Unlock Way:Password Unlock, Mechanical Key Unlock Material: Zinc Alloy, Space Aluminum Door thickness: 32-50mm Quiescent current: less than 10uA Working current: 200-360mA Power: 4pcs AA Battery（Not Included） Package Including: 1 x Door Lock 1 x Lock Tongue 2 x Mechanical Key 1 x Install accessory kit 1 x English manual （Can provide Electronic instruction and Installation video） Show more