Note:
1:Highly Recommended professional installation（NO installation instruction how to connect the O2 Oxygen sensor）,the O2 Oxygen sensor is not universal , only for the Specific HYUNDAI and KIA models（Detailed description below ）:
Oxygen Sensor O2
Part Number:39210-22610 / 39210 22610 / 3921022610
Fitment:For 1999-2010 Hyundai Accent
For 2005-2011 Kia Rio
For 2006-2011 Kia Rio 5
Placement on Vehicle:Front
The output voltage of this O2 Oxygen sensor is only two: 0.1V and 0.9V,so it only can show the working status :"LEAN"and "RICH"，the digital display of this air fuel ratio gauge will only can show the number like 19 or 11（Represents the working statu is LEAN or RICH)
Digital Volt & Digital LED Air Fuel Ratio Gauge
AFR Readout: Between 20-10 AFR
Volt Reads Between 8 - 16 Volts
Blue Digital Read out
Smoke Lens
Fit: 12V gas oil Cars
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
Package include:
1x 7 Colors Air Fuel AFR Gauge
1 x Mounting Kit +Holder Cover
1x English Manual
1x O2 Oxygen Sensor
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