D3
            Smart Key Box

> Metal case, zinc-alloy material, anti-vandal
> Waterproof, conforms to IP53
> Multiple access mode:  mobile APP, Fingerprint, Mifare card, PIN
> PIN length: 6 digits, support 16 digits

> User Capacity: 

   Tuya Version: 50 fingerprints, 50 card, 50 PIN

   TTLock Version: 100 fingerprints, 100 card, 150 PIN

> Read 13.56MHz Mifare card 

> Micro USB port for emergency power charging

> Anti-peeping Password for hiding the real password
> Work with Tuya APP or TTLock APP (Optional)

> Support working with Gateway for remotely unlock

> Working environment: -25℃ ~ 55°C