Operate devices compatible with BlueSecur using the Steinau BlueSecur app.You can send permissions (keys) to family or friends, for example, via text message, e-mail or messenger. You don’t even have to be home to send a key, since keys are transmitted via a certified server in Germany. Manage your keys right in the app.The BlueSecur app must be installed on your mobile phone ahead of time. If a user hasn’t installed the app, they will be forwarded to the app store.Information on the BlueSecur app:- Add a device by scanning the QR code.- Setup and operation do not require an Internet connection.- Permissions (keys) are created on the administrator’s app, can be issued either temporarily or permanently and can also be deleted.- Sets of keys are subject to a fee. One-time keys are free of charge.- Max. 250 users- Optionally, you can use an external antenna should you have range issues.Using Bluetooth in the background of your mobile phone reduces its battery life.