Safecraft’s Model SC3 (3 lbs) and Model SC5 (5 lbs) for sprint cars are completely automatic and can include a manual backup for added protection. A fast-acting thermal sensor is angled to target hard-to-reach, high-risk areas. Both systems contain 3M Novec 1230 Fire Protection Fluid, which is safe for the driver, equipment and the environment. They are available in white only, and the bracket is included.