On 1/3/17 7:08 AM, Tom Van Baak wrote:
I have some high-end temperature and pressure instruments. But for casual use
in my home and mobile timing lab I use Sparkfun Weather Stations. The old URL
is:
https://www.sparkfun.com/products/retired/10586
Replaced by
https://www.sparkfun.com/products/12081
which doesn't have the USB.
By the time you add a board with a processor, you're in the $50 range..
I use these at work:
https://www.lascarelectronics.com/easylog-data-logger-el-usb-rt/
Well, actually I use the EL-USB-2-LCD.. which logs to internal memory
and can't log/unload data at the same time and which requires a windows
program.
That said, they work well, come with a traceable cal certificate, etc.
I don't know that they do 0.1 degree (the data sheet says 0.5C, and I
think that's the logging accuracy), and, well, humidity sensors are of
dubious accuracy away from the middle of the range
https://www.lascarelectronics.com/easylog-data-logger-el-usb-2-lcd/
It's USB, talk-only, one reading a second, temperature, pressure, humidity --
about as simple as you can get. Perfect for data logging along with frequency
standards, GPS, counters and such.
But they don't make 'em anymore. My question is what similar well-engineered,
talk-only, serial or USB, temperature-pressure-humidity sensors have you run
across and could recommend? Not to be picky bit no cheapo 1C or 0.5C sensors;
0.1C or better is ok.
I know it's "easy" to throw one together with an Arduino, but I'm looking for
something pre-packaged, something that reliably works, out-of-the-box. I have backup
plans but hope someone on the list knows some products they have used and would recommend.
We could extend the discussion to voltage and power monitors too. Or some kind
of universal sensor TAPR project. But for now, let's just keep it to simple air
/ environmental sensing.
Thanks,
/tvb
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