Auto Meter Ultra Lite Series, Air Fuel Ratio-Wideband Pro (Full Sweep Electric) 

Range AFR or LAMBDA
Size: 2 1/16" (52.4mm)

Includes 8 ft. tubing or wiring harness.
LED digital display.
0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
Auto-Dimming gauge brightness feature
Includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor
Display data in Lambda or numerical A/F ratio
User programmable range
Peak recall/memory
10:1 to 20:1 AFR Range for Gasoline Applications
Adjustable for Alternate Fuel Types (Ethanol, Methanol, Propane, CNG)
6:1 to 18:1 AFR Range for Alternate Fuel Types
User Programmable Warning Function
This product has no provision for dial illumination/backlighting.
Instrument features brushed aluminum dial in silver finish with matching silver anodized bezel.