What is the trade-in value of the US TM5® if a customer wants the TM6™? There is no trade-in option available for the UL rated TM5® for a TM6™. Related articles What is the Trade-In Program? What are the new features of the TM6™ that are not on the TM5®? How much does the TM6™ cost? What is the warranty on the TM6™? How does the repair process work?