Techknow Order Confirmation Boards come with a standard 3 year warranty. Extended Warranties are available. Techknow Timers come with a standard two year warranty. This can be extended to three years with the purchase of a power conditioner. Fourth and fifth year warranties are available upon request. The manufactures warranty starts 30 days after shipment of the product. The below form must be completed within 14 days to start the warranty period.