Downloads Device Models ST4300 ST4310 ST4340 ST4345LB ST4500 - OBDII ST4500J - J1939 ST4500T - BLE Transceiver ST4910 ST4940B ST4940S/M ST4950 ST4315U Software Tools Reporting Protocols SCUTI - Maintenance Server ST4345LB	SCUTI Log-In / SyncTrak Download / Device Assembly Guides / / Downloads / Device Models / ST4500 - OBDII Sub Categories ST4500J - J1939 J1939 or "JBUS" protocol compatible. Reads J1939 PGNs. ST4500T - BLE Transceiver BLE iBeacon compatible for Temp, Real Time Location, etc