No need to get defensive, no one said you were doing anything wrong, just responding to you and offering opinions/looking for some clarification. We have a lot of newer keepers here that may take a process that makes perfect sense to you, twist it up trying to use it, and end up with an issue. You start daisy chaining equipment together not knowing what you're doing is a recipe for disaster.
As far as Inkbird thermostats, I've never used them myself. I've heard good things, but I've always used Jumpstart, and most of my backup thermostats in my supply closet are Jumpstarts. Now I've moved most of my crew over to Herpstats because if something goes wrong, they're going to turn off. This works fine for me because I work from home, and them being cool for a few minutes while I grab a backup thermostat isn't going to hurt anything.
Apologies if you thought I was saying you were doing something incorrectly, wasn't my intention.