The Cartek coolant level alarm offer drivers an early warning should their engine devlop a leak in the water system. If the water level in the aluminium sensor tube drop below the level of the sensor then the sensor will activate the led mounted on top of the tube. This system can also send the signel down the cable provide to ativate a warning inside the cab whether that be a dash mounted LED, 12v buzzar or even connected to the car's ECU if this funcion is aviable. The system is mount with a Red and Green LED so that it can be spotted by looking in the engine compartmant will warming the engine in the pit lane or service area before going out to compete.