提供锁覆盖、低电池电压检测和预警，以及LED状态指示灯，从而能够锁定程序。
Provide key override, low-battery detection and warning, LED status indicators, and ability to program at the lock.
提供锁覆盖、低电池电压检测和预警，以及LED状态指示灯，从而能够锁定程序。
Provide key override, low-battery detection and warning, LED status indicators, and ability to program at the lock.
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