Explosion Proof Temperature Alarm

[kleclerc77]

I'm looking for an alternative to the condenser temperature probe we were given with our still. I am looking for an explosion proof, alarmed temperature gauge to take the place of what we have in there now. What we have now is meant to be run with an automated setup, which we do not have. ( https://spluss.de/en/products/temperature/temperature-controllers-thermostats/built-in-temperature-controller-immersion-thermostat/1102-2010-2100-390-etr-060-u-va-100/ ) (pictured) Trying to find an answer from our supplier has been unsuccessful. If anyone has a lead on a alternative, or how to get this thing hooked up to an explosion proof alarm, it would be much appreciated. Not the most exciting topic, but a frustrating dead end that has taken up a lot of my time! Thanks!

[Patio29Dadio]

Go to Automation Direct.  I am using Prosense RTD temp probes.  These are NEMA 4x and generate so little current that they are explosion-proof without needing the certification.   They measure changes in resistance between a high-conductivity wire and a ceramic core.  They don't get any power other than what they generate.  The wire is expensive.... about $1.20 per ft.  The probes are about $80-$100 each.   Now the next step is a digital display.   Those can vary but expect at least $100 each.  And you will need an enclosure with all the wiring, etc. 

So your analog temp gage replacement just became an expensive move.