I just bought two of them.  They come with the key to enable all four
channels.  Limited sampling rate.  Good deal.  A great toy for
experimenters.  Try connecting to a geophone.

Michael Duck


> This may be old news, but DataQ is selling their 4-channel 8-bit A/D
> converter (connects to PC via serial port) for $15 each.

>
>
http://www.dataq.com/cgi-local/SoftCart.exe/products/startkit/di194.htm?E+sc


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