The question marks mean that the receiver does not understand the sensor readings for the moment. You will want to wait a minimum of three (3) hours for them to clear. If they do not clear within that time frame, please contact our Technical Support team at 1-877-339-2664 for further assistance.
If you are ready to take the next step, the process is simple. Provide us with a few details and we will contact you to begin your order.