Contains the following:1544: Fuel Gauge: Black bezel low profile fuel gauge for 12V negative ground systems. Use in conjunction with Model 1542 fuel sender. Complete with light kit.1542:Fuel Gauge Sender: Adjustable depth from 4" to 27" (10.16cm to 68.58cm). Fits most tanks. Includes gasket. Resistance value 240 ohms (empty) to 33 ohms (full).