TL700 is designed as a childproofing fingerprint smart door lock with a built-in doorbell. Users do not need to worry if the kids have unlocked the door from inside the house and gone wandering outside. Because of the doorbell integration, users do not need to deploy an extra doorbell. What’s more, thanks to the Class C cylinder design and mortise protection, even if this lock is damaged from the outside, your home is still safe. ParametersCapacityIC S50 Card: 100Fingerprint: 100Password: 50Power Supply4 x AA alkaline batteriesLow Battery Warning4.5V to 4.8VEmergency InterfaceMicro USB 5VMortise TypeChinese standard mortise (6068)ApplicationDuplexes, townhouses, apartments, condos, and other residential areasRandom PasswordSupportsDoorbellSupportsChildproofingSupportsDoor Thickness45 to 60 (customizable)Operating Temperature-20°C to 60°COperating Humidity10% RH to 90% RHDimensionsOutdoor unit: 370 * 75 * 24mmIndoor unit: 370 * 75 * 24.8mm