No Wi-Fi - No Bluetooth

ELD that works Uninterruptedly, without Bluetooth or WIFI
Another kind of ELD module available is hardwired and can transfer records directly collected from the Engine Control Module (ECM) unit of a carrier are a fully compliant option. The engine data, along with the updated duty status report, can form a steady data flow. In this case, the dataflow does not depend on Bluetooth or any WIFI hotspot. It has built-in network connections that start working with the engine movement and continues to throw records until the vehicle is on the move. Thus, there is no question of network disruption or connection drop.

[@KaranSingh_Boss]

Fantastic Device