Best Smart door lock with high-security technologies #2021

High-security finger vein mortise lock E8.
The finger vein authentication technology overcomes those biometric authentication difficulties caused by finger wrinkles, wet fingers, finger blisters, dirty finger epidermal surfaces, and so on.
E8 authenticates users of any age, be it the elderly or children.
The key is hidden in your finger veins.
Highly secure and extremely difficult to steal or copy.
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