Libra smart door lock (01) black

The smart door lock allows you to access with one step, comfortable design, makes it easy for you to open the door in just one second by placing your fingerprint on it. Features: one-step access, comfortable design, makes it easy for you to open the door in just one second by placing your fingerprint on it. The door automatically locks. If an attempt to open is made, a notification alert will be sent to your phone. This maintains your safety and your home at all times. Easy to use and install. Works at temperatures: -4 Fahrenheit below zero up to 131 Fahrenheit (from -20°C below zero to 55°C). Works at humidity: 40% to 85% relative humidity. Battery life expectancy: up to 10 months (with an average of 10 lock openings per day). Low battery warning: 2.54 volts. User manual Usage methods: fingerprint, access code, Bluetooth app. Fingerprint capacity: 51. Card capacity: 49. Electrical specifications: IP53: indoor use. Battery type: 2 AAA batteries. Other specifications material: aluminum and plastic color: black warranty: 24 months carton contents: long arm 1 handle front handle rear screw connectors 2 (60 mm) used with door thickness (51-60 mm) screw connectors 2 (50 mm) used with door thickness (41-50 mm) screw connectors 2 (40 mm) used with door thickness (30-40 mm) hammer lock tongue lock bolt x2 (M4x20) pass card 4 screws 4 X1 (M4X30) lock hammer box user guide installation sheet rubber stopper 2