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Easy Accurate functional funcional useful when accuracy is not needed
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  • Thermometer that just works

    posted by PetrStk on 02/11/2013

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month


    It's a plug&play thing. Small, relatively cheap, very simple to use. Well built. The temperature reported is very precise, down to hundredths of degrees Celsius (like 24.48C).


    The reported temperature has an offset by 3-4 degrees so you need to calibrate it first with another thermometer. Interestingly, it shows higher temperature than real when used in MS Windows while in Linux (using pcsensor.c software) it reports lower temperature than the real one.


    I bought it for monitoring temperature in a server room so it's plugged into Debian Linux server. For a quick test the pcsensor can be run with the following options:

    pcsensor -c -a 730 -l

    The "730" is experimentally found out temperature offset (21.62C -> 24.48C).


    Even though I am able to buy a DS18B20 and solder a simple interface this TEMPer is ready to go immediately after unpacking. The only issue is to find out the temp offset. Try out my -a 730, perhaps it's universal?

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