AVBM II with in car controller for Square 4 pin Toyota
This simple device plugs inline in-between the alternator harness and the plug on the alternator. There is a 6 foot long control cable that runs from the T harness at the alternator to the black control box mounted inside the vehicle. This allows the installer to monitor and adjust the charging voltage of the alternator from inside the vehicle. Adjustment range: 14.0 - 15.8 volts.
Compatible with most square 4 pin Toyota / Lexus OEM and MechMan high output alternators.