Check the listing for details. Lot of 2 NetworkFleet L3500 GPS tracker w/OBDII Maintenance scanning function. Condition: New. Listed at 23.09 USD. Lot of 2 NetworkFleet L3500 GPS tracker w/OBDII Maintenance scanning function The Networkfleet 3500 offers the powerful combination of GPS tracking and patented remote diagnostics. Your dispatchers will know where a vehicle is while your mechanics monitor when the vehicle will need service. The device also includes:Engine Diagnostics - The 3500 has patents around how it interfaces with the engine computer of a vehicle to provide diagnostic information remotely.Sensor Capability – With sensors, fleet managers can get additional diagnostic data on their vehicles by detecting various voltage events.Plug & Play Installation - Easy to install to the OBD-II engine computer, the 3500 does not require any wire splicing. Bin