The Extreme system is no longer manufactured by TimePilot and has been replaced by TimePilot Extreme Blue, which has the same features as the old Extreme plus Bluetooth capability. If you aren't sure whether you have Extreme or Extreme Blue, check the case: The Extreme case is powder-coated aluminum; the Extreme Blue case is impact-resistant ABS plastic.
If you have an Extreme system and want to add clocks, Extreme Blue clocks have the same USB drive functionality and can be added to your system with ease. Also, iButtons are still available for existing TimePilot Extreme installations. You can order them at our Accessories page.
Need tech support for your Extreme system? Click here to visit our Support Center.