Smart deadbolt, A220To replace traditional mechanical deadbolt, plug and play, no need additional drilling; App unlock, programme the pin code without coming near the deadbolt; Send out the pin code any where you are; No need to take the phisical key with you;

⭕ 303#: High volume (used in the initial state)<default high>

one click unlocking can be achieved through the app (But remote unlocking outside the Bluetooth range requires a gateway)

-passcode unlock

and multiple unlocking failures

you can still unlock the smart lock by using a mobile charger connected to the USB charging terminal

➡️【Passage Mode】Press 5 # to activate passage mode

🔸 Password Capacity: 500

🔸 Version: TTLOCK (Can connect to the gateway)

it can be temporarily powered and unlocked through the USB interface

you can enter random numbers before and after the correct password to prevent others from remembering it

fingerprint

➡️【Public Mode】After switching to this mode