Oh the toilet facility of not having to use keys — that ’s what you get with a Bluetooth - enable cellular telephone and BlueGuard , the automaticdoor opener .
The $ 200 unit of measurement notice up to 10 disjoined cellphones at up to 33 feet ( standard low - power Bluetooth range ) , and surcharge up to the door - opening system to enable you to get hands - free entrance . The site says this is more of an industrial role , and attach to “ gates , overhead door and parking barriers , ” so it ’s less of you flummox into your house . Still , it ’s quite useful . [ EMXincviaWired ]
BluetoothDoorGates
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