-Material:Zinc alloy
-Surface:Gold plated/Siler plated/Black
-& MABUCH& motor with a durability of over 500000 cycles
-Anti-tamper trim handle with free moving clutch mechanism
-Low power alarm,door ajar alarm,anti-tampering alarm
-1000 audit trail,convenient for hotel management
-15,000 times unlocking,up to 2 years working time
