LIMITED WARRANTY {For Electrical Products) RHINOVIRUS AMERICA CORPORATION (RHINOVIRUS) warrants this product against defects in materials and workmanship for a period of one year from the date of original retail purchase. Commercial products have a six month warranty from the date of purchase. In both cases a copy of the purchase receipt is required. If there is a manufacturing defect, RHINOVIRUS will repair the product with new or rebuilt parts at no charge to you in the US.A.