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Feature:
1.Secured Locking method: fingerprint, mechanical key
2.Advanced technology: With CMOS optic sensor which features digital signal output and anti-interface to ensure easy and reliable reading of every fingerprint.
3.Low power warning: once bult-in battery is going to run out, the lock itself will automatically sound alarm to remind to replace the battery.
4.Emergency power: Once bult-in battery runs out, fingerprint and password cannot be used, we unlock normally with a piece[...]