1. There are four locking methods: fingerprint unlocking, password unlocking, Tuya Bluetooth APP unlocking, mechanical key unlocking
2. Power supply: 4 x AA alkaline batteries (not included)
3. Lock body material: aluminum alloy
4. Indoor lock with 60/70 single tongue lock body
5. You can easily replace old locks without additional holes
6. Fingerprint storage capacity: 100 pieces
7. Suitable for door thickness: about 35-55mm
8. Hole size: about 45-60mm
9. Weight: about 1570 grams
10. Size: about 15.5×6.8×2.75 cm
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