What is a smart keychain
The smart keychain is a gadget created specifically for people who frequently lose their keys.
It can detect and locate lost keys through a downloadable application on your smartphone.
This gadget uses Bluetooth Low Energy (4.0) technology, also known as Bluetooth Smart, which has a low power consumption thanks to which it remains in almost permanent communication with the smartphone that carries its application. Thus, if the door is moving away from the smartphone, the user receives an alert.
To choose a smart keychain, the following criteria can help:
Generally a battery lasts 1 year. The right choice would be to buy a smart keychain with a rechargeable or changeable battery and when the battery is rechargeable, it will be necessary to see its autonomy.
- Range of detection
The actual detection range does not exceed 70% of that announced by the manufacturer, giving a maximum range of 30 m to 50 m depending on the products.
- Power of the alarm
Since bluetooth alone can not locate the keychain precisely, most of them are equipped with an alarm that should be neither weak nor strong.
It will take, before buying its smart keychain, to see if its smartphone is equipped with Bluetooth 4.0 or not because most keychains are not compatible with smartphones without Bluetooth 4.0.
This word simply means the alert given by the smartphone each time the door departs from it.
A gadget that accompanies all the time its user must have a nice design but this nice design often has a price.