2025-05-08 00:00:00 FlashTrak BLink is used to connect to DeltaTrak BLE data loggers and view the recorded temperature data and upload the data to FlashTrakRTL.com. You can also use the app to STOP the data logger from recording. Use the barcode scanner to connect to the exact BLE device or use the RSSI (connection strength measurement) to connect to the nearest device.