Accurate & Reliable Vehicle Detection Calculators Make your life easier with these handy calculators: LoopalatorOur Loop Layout Calculator can help you determine the size and placement of loops needed for any system.Determine Loop Layout Sealant Needed CalculatorUse this handy calculator to determine how much sealant you need to seal a BD Loops Preformed Saw-Cut Loop.Determine Sealant Needed Sand Needed CalculatorHave a trench to fill? This calculator determines the amount of sand needed to fill a trench.Determine Sand Needed