The Works Engineering water temperature sensor adaptor allows for easy installation of a sender unit to accurately measure your cars water temp. It comes a 1/8 point sensor hole that fits most popular aftermarket water sensors. Constructed from light aluminium, it will accommodate either mechanical or electrical senders. The adaptor mounts on the upper radiator hose in the engine compartment and can be easily installed in just a few minutes. Includes mounting hardware. Gauges and sensor are not included.