Main material: High quality Zinc alloy
Lock core material: Pure copper
Center distance: 68mm
Applicable door thickness: 40mm - 90mm
Key capacity: 300 (Fingerprint + Password + IC Card)
Working power: 4*AA alkaline batteries
Low voltage alert: <4.5V
Emergency Power Supply: Micro USB Emergency interface
Operating temperature: -10℃ ~ 60℃
Working humidity: 20%RH ~ 93%RH