Product Name : Wideband Oxygen (O2) Sensor
Product Description

Wideband Oxygen Sensor

All-range precise detection

Wide band oxygen sensor also known as "wideband O2 sensor" and "wideband AFR sensor", is an advanced 5 wire oxygen sensor with the same function as the conventional oxygen (O2) sensor. Commonly applicate on the vehicle made since 2000.

Wideband sensor detects an all-range broad spectrum of air to fuel ratio. With continuous sampling of the oxygen content within the exhaust gas, wideband oxygen sensor feeds its reading as how rich or how lean these oxygen contents are, then vehicle’s ECU can manage precise fuel injection to sustain ideal air to fuel ratio.


Ceradex’s patented dual cell wideband planar technology enables our sensors to achieve and exceed original equipped (OE) performance and specification.
Product Introduction
  • Specialized stacked dual cell planar design provides higher detection accuracy, increased stability, and better heating durability
  • Monolithic ceramic element allowing faster operating time reach and shorter response time
  • Formulated element surface guarding against dew impact
  • Formulated protection layer filtering out harmful gas to the sensing catalyst
  • Premium stainless steel body protecting against extreme temperature and environment
  • Double layer frontal tube protection to eliminate exhaust gas direct hitting the ceramic element encased
  • Isolated circuitry body to minimize signal noise
Available Type WB1,WB2,WB3,WB9
Sensor Element ZrO2
Technology Duel Cell Wideband Planar
Circuitry Isolated Ground
Frontal Tube Double Layer
Hex Nut M18
#Wires 5
Heating Heated
Fitting Direct Fit 
Temperature Range -40°C ~ 1200°C
Operating Temperature ~780°C