They all do the same, to say you pay extra $30+ cause your getting better is BS. The extra your paying is if its proportioinal or on off. IMO means squat for racks which you use.
They all do the same function of controlling heat, one will control to a more precise temps which is fine for incubators but for racks its not needed.
Every time thermostats are requested on which is good, everyone Jumps on them like they need to spend 120+ or they will end up with a POS one.
I own ONE herpstat for my incubator and 8 Johnsons. One of my Johnsons is going on 8 years old and never one problem. For $88 shipped its the best buy, will do what you need and then some.
IM sorry I had Helix and their garbage, it failed on me non stop or i had to have it set to 98F just to get 89 in the tub. And im not the only one with this problem on helixs. Herpstats are nice but not everyone can drop 130 for thermostats when a $88 one will do what it needs just as well.
In winter time my snake rooms are at 77F and temps dont fluctuate using johnsons at all. Dont let those tell you anything else as it will work just fine.
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