Congratulations on your purchase of Merlin 8.
Merlin 8 works with your AltaCom II or ACom 4x weatherstation, adding SMS texting to all Merlin 7 functions and features. You can install Merlin 8 on one computer, you have access to free updates for 3 years. When you register the SMS function Altalab will send you a license file. When you copy that file into your Merlin folder it unlocks the SMS capability.
Instructions for registering and setting up SMS Merlin8-sms-instructions.