How many Pet modules can I connect to a single Guardian? Jane Jonson Updated November 09, 2017 11:43 Follow Each Guardian module can track up to 3 Pet modules. For more information, please check the article on how Findster Duo works.. Related articles Is Findster Duo waterproof? How to save maps for offline use 11. Updating the Firmware of Guardian/Pet modules 🎥 Can I use Findster Duo for other applications beyond tracking pets? How do I reset Guardian and Child modules? Have more questions? Submit a Request Comments 0 comments Article is closed for comments.