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on what to look for in a probe to easily match with your analog module . Do you know how many bits the A/D converter is on your module? This may help you decide on a probe by just looking at it sensitivity specs, so you don't have to add more components. For example if your module has a 8 bit A/D converter and reads 0-5V, it means it can read voltage incriments down to about .02V. Lets says the probes output sensativity is .001V/1 degrees C and outputs 0V at 0 degrees C. A reading of .02V on your module, would be read as 20 degrees C, but the actual temperature could range anywhere from 20 degrees(.02V) to 39 degrees (.039V) because the analog module only outputs .02V,.04V,.06V,...5V. To get a more accurate reading you could add a simple amplifier circuit with any gain needed to get a higher resolution desired. That's just more stuff to buy and build, though cheap(maybe $2 in parts). So maybe look for one that has a more compatable output to your existing equipment(if one such exists).
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