I forgot to mention that the sample rate can be fairly slow (> 0.1Hz is OK) and if it cannot do realtime output, then we would want to be able to store at least 5 days of data. Sean On Fri, Sep 26, 2008 at 11:54 AM, Sean Breheny wrote: > Hi all, > > I am trying to find a datalogger with the following specs. I thought > it would be fairly easy but it is turning out to be difficult: > > 1) At least one differential voltage measurement with +/- 20mV range > (at least) and 3uV or better resolution. Noise and offset drift can be > as much as 30uV. Initial offset can be almost anything if it can be > calibrated out. (This is being used to monitor a current shunt) > 2) At least one thermocouple or RTD or thermistor temperature input > (with cold junction compensation for TC if it uses a thermocouple). > 3) Ability to either transmit realtime data or allow pulling data down > remotely over either serial or ethernet (preferred) or even wifi > (best) > 4) Preferably under $1000. Most units I've found which can do these > things have WAY more features than I need and are >$2K > > Thanks, > > Sean > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist