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Alfred's smart lock might be the first real product that gets its power beamed through the air - The Verge
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Alfred Touchscreen Keypad Pin + Bluetooth + Key Entry (DB1-A-BL) Smart Door Lock : Amazon.co.uk: DIY & Tools
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Alfred DB2 Smart Door Lock Deadbolt Touchscreen Keypad, Pin Code + Bluetooth, Up-to 20 Pin Codes (Black) : Amazon.co.uk: DIY & Tools
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