The F4 is a type of smart door lockset with a four opening ways.
Key Features are :
- Pin code
- Key card
- E-key (APP)
- Emergency Key
It is connected by Bluetooth and TT Lock management app.
The material is made of SUS#304.
Door thickness is 40mm - 110mm
Color available are black and silver.
Other specifications are :
| Voice guidance | Yes |
| Scramble attempts alert | Yes |
| Improper attempts alert | Yes |
| Privacy lock | Yes |
| Time bounded access | Yes |
| Backup power | Yes (USB) |
| Water resistant | No |
