For some applications you may need adapters to install the sending units. For example, LS applications have metric connections so you may need a M12 1.5 male x 1/8" npt female adapter for the temp sender and a M16 1.5 male x 1/8" npt female for the oil pressure sender. Oil pressure sandwich adapaters and water temperature sender adapters can also be used for installing the oil pressure and water temperature senders. These adapters come with 1/8" NPT female ports. Adapters are not included but can be readily found online.

A fuel level sender is not included. The SCX and Comp II LED fuel level gauges can be programmed to work with the five most common fuel level sender ranges (0-90, 73-10, 240-33, 0-30 and 20-150 ohm). Check your current fuel level sender output (Empty - Full) before ordering. If necessary we can supply a fuel level module that will allow you to use a mismatched sender and gauge.

Tachometer
If you have a standard ignition coil, ignition box with tachometer signal output (i.e. MSD 6AL) or ECU 12V tachometer signal you do not need anything additional to hook up your tachometer. See the How do I hook up my tachometer? FAQ for more info.

Speedo
If you have a hall effect sender, GPS sender or magnetic speed sensor (i.e. vehicle speed sensor) already available the speedometer should work without any additional sending units. See the What will I need to make the electric speedometer work? FAQ.