public double getAccuracy() {
        return IBeaconUtils.calculateAccuracy(
                getCalibratedTxPower(),
                getRunningAverageRssi());
    }
Gets the estimated Accuracy of the reading in meters based on
a simple running average of the last {@link #MAX_RSSI_LOG_SIZE}
samples.

@return the accuracy in meters
library/src/main/java/dev/alt236/bluetoothlelib/device/beacon/ibeacon/IBeaconDevice.java