WB Wideband D2 Air Fuel Ratio Gauge (WHITE): Automotive. Buy WB Wideband D2 Air Fuel Ratio Gauge (WHITE): Air & Fuel Ratio - ✓ FREE DELIVERY possible on eligible purchases. Anti-Glare lens 。 Pre-assembled harness 。 The best value in wideband gauges 。 FEATURES:。 1 – Configurable four types of fuel (E85, Diesel, Gasoline, Methanol) and lambda display (Faceplates are sold as accessories)。 2 – Sweeping LED "needle" indicator from rich (green) then normal (orange) to lean (red)。 – Fail safe LOCKED connector。 4 – Two ANTI-GLARE faceplates (black (default) or white) options - please add to notes when you order。 5 – Multiple outputs for digital (to PC), analog (to data logger / EMS), narrowband for simulation and extra switch options。 6 – On gauge programming - No need a PC or tablet for programming upper/lower limits and other settings。 。 。 。