How do I update the controller/thermostat/humidistat? Do I need to update?

Even if you have just got a brand new Trolmaster product in-store, the firmware of each controller/module can be outdated. Not only for bug fixing purposes, but firmware updates also unlock additional features to them. To learn how to update, check the link below:

https://www.youtube.com/watch?v=NveUp6XFRZI