1.When powered on digital gauge will read the voltage for 1 minute and switch to Air Fuel Ratio.It will only switch back to voltage if there is a decrease or increase.

2.It is suitable for 12 volt gasoline vehicles.

Oxygen Sensor Specification:

Working Voltage: DC12V

Signal Line Voltage: 0-1V

Spiral: M18*1.5

Use Wrench: 22mm

Output Voltage: Maximum value ≥900mv/ minimum value ≤50mv.

Response time: (600mV-300mV) ≤100ms.

Response time: (300mV -600mV) ≤100ms.

Starting time: ≤10s

Heating resistance: 8.5~9.5Ω

Internal resistance: 200~300Ω

Package included:

1* Air Fuel AFR Gauge

1* Narrowband Oxygen Sensor

1* English Manual(Only teach how to install the gauge,but do not teach how to install the O2 sensor,thanks)

Note:

1.Highly Recommended professional installation,do not teach you how to connect the O2 Oxygen sensor.

2.This kit is not a universal kit, please confirm whether this oxygen sensor is suitable for your car before buying, thank you!