Need a good 1 wire temperature sensor, there is a lot of information about the DS18B20,
but I see nothing about it's quality or expected lifetime.
I was wondering which is the expected lifetime of a DS18B20?
I see them packed in probe fashion, need them like this. It seems that the company does not makes the chip pocket or probes themselves. Also there are bad reviews out there.
Are these thermometers serious to use at commercial level? If not, What other alternatives are out there for practical (maybe harsh?) use?
Would love to hear real world experiences…
Best Answer
These are not used widely for commercial systems, though that probably has more to do with their electrical characteristics and price than "reliability" per se (and, of course, compatibility with legacy systems).
Commercial HVAC systems generally use precious metal or base metal RTDs or thermistors. The elements in such sensors are less rugged than the semiconductor sensors, but the sensor manufacturers know what they are doing and make enormous quantities.