I believe that's the one you want.
The Honeywell will cost you about $25-40 depending on whether you get a basic non-programmable or a programmable one. The Dometic is $90 and isn't programmable.
I see your link to the Dometic says it has a "3 wire connector." I have no idea what that means. I suspect it needs at least 6 wires (+12VDC, wire to furnace, wire to AC, wire to hi speed fan, wire to low speed fan, and ground wire for the thermostat's "brain").
Most of the Honeywells I've seen do NOT have a fan speed switch, so you'd have to add that; figure another $10 and some work on your part.
So positives for Honeywell is price and ability to get a programmable version. Negatives are it's battery operated, so you'll have to replace them periodically, and having to wire in a fan speed switch yourself. (Or just pick one speed and go with that).
Positives for Dometic are it should be plug-and-play and is powered from your TT. Negatives are cost and not programmable.
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1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
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