Monitor two sensors with one compact gauge! The DLG-1: Dual Lambda (AFR) Gauge Kit includes the DLG-1 gauge, 2x Wideband oxygen O² sensors, 2x 8 ft sensor cables, LC-2 Wideband Controller, 2x O² sensor weld-on bungs, Black/Silver bezel, Black/White faceplate, Serial program cable, & Installation manual.