Please verify again with the seller.
I'm doubtful if this lock supports bluetooth or wifi without additional module.
It seems that zwave module is given only.

anyway, bluetooth is pretty useless for digital lock.
unlocking via fingerprint, numpad or tag is way faster.

also, if you have grille installed, you may consider to get two digital locks in total.

Why is it redundant?

Today, I have both wooden door and grille installed with digital locks.
It is extremely convenient.
Also, I feel safer for not having to look for key to unlock my grille in the event of emergency.