Retrofit smart lock with minimalist oval design and silver thumb‑turn on a clean pedestal

Frontal view of sleek retrofit smart lock with LED status bar and metal thumb‑turn

Tuya and TTLock app interfaces with technical drawings and dimensions of the retrofit smart lock

Retrofit smart lock installed on a wooden door beside a lever handle

SwiftTurn Retrofit Smart Lock

Model:	S8
Color:	Black
Support APP:	TUYA/TTLOCK
Material:	PC
Technology:	BLE
Power:	4pcs AAA batteries
Door type:	Wood/Composit/Security door
Size:	157.463.653.5mm
Unlock way:	App,Manual,Sensor

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Description

A sleek, battery‑powered retrofit smart lock that fits over your existing thumb‑turn—no door drilling or cylinder change. With Tuya BLE or TTLock Bluetooth control, it enables quick installs, flexible sharing, and reliable smart access for apartments and rentals.