Channel 2, O2 Sensor, Harness, And Bung Kit For Part Number 7766 O2 Sensor, Wiring Harness And Bung Kit Used To Add The Secondary Monitoring Channel To The Ntk Wide Band O2 Module Part Number 7766 MSD IgnitionThe Dual Wide Band O2 sensor module is capable of measuring AFR as low as = 0. 5 (7. 35: 1 Gasoline AFR equivalent). The AFR range is configurable using the MSDView software in conjunction with the Power Grid Controller (PN 7730). Excellent range of the NTK sensor gives this unit the ability to accurately monitor AFR's even on alcohol cars. The MSD Wide Band O2 Sensor module also provides a 0. 5 4. 5 VDC analog output proportional to the AFR. This