Electronic School Cabinet Lock
1. Low voltage alarm: When voltage is lower than 4.5V, lock will beep and blue light to remind user change battery in time.
2. Attack protection: Password input error 5 times, the lock will be in protection status for 3 minutes.
3. Emergency unlocking: OTP unlocking/smart key.
4. Powering ways: Alkaline batteries and USB power supply.
5. Different working ways available: Suitable for different occasions, like gym, office, swimming pool etc.
6. Messy code function: Protect your password from prying eyes.
7. OTP emergency way: One Time Password to unlock for emergency.