APSX D1-DIY Wideband Controller and G1 LED AFR Display Kit (GREEN) G1 LED Display: 3 digit LED screen board (1.0" X 0.8") with 6 ft cabling (0.2" high LED) for gasoline, diesel, E85, Methanol engines. Lambda is also available. D1 controller can be water proof if the enclosure is filled with epoxy Analog 0-5V linear (9-19AFR) which is is datalog compatible. Digital output (96008N1 serial). Simulated NB (NarrowBand) output