Gauges works with a sensor together to display information to the driver. The gauge is only as good as the sensor, and the sensor is only good as where it is placed. The placements of most of the sensors is often overlooked. Buddy Club Hose Sensor Adapters are made of high strength aircraft aluminum 6061 alloy material, cut and machined by the most advanced manufacturing technology, anodized blue, and is designed to withstand high temperatures without compromising durability and reliability. With a Buddy Club Hose Sensor Adapter, you can place the water sensor directly in the stream of the water towards the radiator without absorbing heat from the engine block for a more accurate reading of the water temperature. Only 30mm is available and stays water-tight to prevent leakage with the provided hose clamps. Each adapter features an 1/8” NPT fitting that can be used with other brands of sensors.