Material:Aluminum Alloy+Paint+IML Cover
Size(L×W×H):270*63*24mm
Weight:About 1.2kg(No include lock body)
Color:Black
CPU:ST_ARM® Cortex™-M0 8 digits micro controller
Fingerprint Sensor:Support(Size:160*160,on the knob)
WIFI Communication: Support(802.11 b/g/n @2.4GHz ,WPA/WPA2 safe mode)
Audio support: Audio(Chinese/English)+Alarm(back lock)
Keypad: Touch screen(Front board)+reset(Back board)
Battery: 4 AA alkaline dry batteries, capacity specification: 4.5V~6.5V
Standby time: 20000 hours more  
Fingerprint: Support
Password: Support
NFC card: Support(2pcs),work rate:13.56MHZ, Card reading distance:15mm more(screen on),6mm more(screen off) unlock time:1~2ms
Key: Support(2pcs)
Management software: Support(Website+APP)
APP: Support(Tuya APP)
Cloud platform: Tuya