Temperature controller(ranco or similar)

[Headless_donkey]

I would like to buy a dual stage ranco temp controller. Let me know what you have. I almost had a disaster tonight and would like to avoid such a thing again.

[captexas]

Saw the headline and was going to tell you I have a single stage controller available, but then I saw you are looking for a dual. If you can't find a used one, I got mine at diyreef.com They were the cheapest then, not sure how they compare now though.

[Headless_donkey]

Thank you. I have an idea that might make a single stage work. I think a normally closed relay wired to the output would work, but I can't decide if it is worth the trouble.