The best serve radar on the market, this device is accurate and reliable when measuring ball speed. Our staff have used it personally as well as at events and we have had great success with the product. It comes in at a higher price than some other radar products but accuracy and consistency are so important and this product has proven itself over and over which is why we carry it. If you’re looking for a serve radar for training, coaching, or to finally end an argument with a friend, this is the best product for the job.