The door will be always locked thanks to the motorized cylinder. NIO cylinder by EVVA does not require the traditional key, wireless dedicated tools and smart home system can be used instead. The installation can be done on all models of security doors with mechanical locks and does not require wiring. The cylinder works with rechargeable batteries.
The device can be installed any time, even on a door already fitted. It’s easy to install, it doesn’t require any connection with mains, supply or battery. NIO allows to open door with :
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