An acquaintance is looking for a low cost module that will selectively  
output 0-20ma, 4-20ma and 0-5VDC to a datalogger.
12VDC power is available.  ( I am not worried about the power issue  
since I am sure I can raise or lower the voltage to the required  
level. )

Would  someone suggest a module in the $10-20 range that will accept a  
thermistor or similar and produce 10 bit accuracy ?  It would be a  
bonus if the module can operate at 150F.

If a module cannot be found , then a suggested circuit would be  
appreciated.

Thanks
Gus
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