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1. Various working modes available (public mode, private mode etc), suit for different application.
2. Low voltage alarm: if voltage is lower than 4.8V, lock will prompt with blue light and continuous beeps 8 sounds after opening, during this time period, it can still be unlocked more than 100 times.
3. 4~10 digit passwords with random setting for unlocking.
4. Random order password function and OTP unlocking way keep high safety.
5. Customizing function: PDA data collection, supporting download and print the unlocking record date.
6. Support single/double code unlocking.
7. Two ways for power supply: 4*1.5V AAA battery & 6V DC by Micro USB connector for emergency.
8. Passed “National Secrecy Science and Technology Evaluation Center” testing.