52mm (2 1/16")

This one gauge will display Green or White and is dimmable!

Utilizing the latest Bosch wideband O2 sensor -5 wire heated LSU 4.9 (Prosport Inc. is the only one in the USA to use them) our gauge now has the widest range 10.0:1 to 20.0:1 AFR readings on the planet.

Featuring a Dual color (White or Green) readout in the center of the gauge and a bar-graph style LED's around the outside of the gauge for immediate reference to AFR.

This is a complete kit that includes everything you need:

• AFR digital Gauge
• Bosch 4.9 5 wire heated O2 sensor
• UEGO Control Box
• Weld in Bung
• Instructions
• Wiring harness(Gauge to O2 sensor) 10 feet long
• Plug and play wiring harness
• Decals
• 0-5 volt output signal for data logging