Prosport 52mm digital wideband kit, this is a complete wideband AFR kit that includes everything needed.
    
Utilising the latest 5 wire heated 4.9 Bosch wideband O2 sensor this gauge has a wide AFR measurement range of 10.0:1 to 20.0:1. .
    
   
52mm Prosport digital wideband AFR gauge
   
Bosch 4.9 (5 wire) heated O2 sensor
   
Control box
   
Exhaust mounting bung
   
Instructions
   
Wiring harness (Gauge to O2 sensor), plug and play
  
    
 
    
*Due to extreme conditions & nature of usage wideband sensors excluded from any warranty.