Find wording that allows the UA to limit its scan to only certain periods of time, to save power. It rose above -50 when I was around one foot away. Ensure the UA is scanning for BLE advertisements in a mode that will receive at least all advertisements matching any scan in any activeScans set in the whole UA. When the signal got up to -60 I knew I was pretty close - I was within 3 feet. Remember that the signal goes right through the floor and that there will be "pockets" of increased signal strength due to the interaction between the signal and metallic objects within the house (or the walls) that can make it misleading at times to use it as a tool for finding a lost Bluetooth device. In my experience the signal strength hovered between -99 and -85 until you got within 10 feet of the object. They are negative numbers, so note that higher numbers will appear smaller. The RSSI is a signal strength measurement. After reading other reviews and using it to try and find a Fitbit, I have gathered that most devices have meaningless names within the app. Like other reviewers have said, this app needs instructions.
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