In this kit the Zt-3 Wideband is bundled with the ZR-3 Gauge. The ZR-3 Gauge displays Air/Fuel ratio. High contrast LEDs are visible even in a direct sunlight.

Includes  Zt-3 Wideband Air/Fuel Ratio Meter, 10ft Sensor Harness, Signal Harness, PC Serial Cable, O2 Sensor  and Installation Instructions.