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| plant_sensing [2009-05-20 09:46] – 81.188.78.24 | plant_sensing [2009-05-20 10:04] – 81.188.78.24 |
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| * Fertometer: http://www.fertometer.com/ (also has a quite detailed description of how it works: it's basically an electrical conductivity meter http://www.fertometer.com/specs.html. here is a page about making a DIY electical conductivity meter http://www.octiva.net/projects/ppm/) | * Fertometer: http://www.fertometer.com/ (also has a quite detailed description of how it works: it's basically an electrical conductivity meter http://www.fertometer.com/specs.html. here is a page about making a DIY electical conductivity meter http://www.octiva.net/projects/ppm/) |
| * pH meter > http://blea.ch/wiki/index.php/PH_Meter | * pH meter > http://blea.ch/wiki/index.php/PH_Meter |
| | * environmental sensing > http://web.media.mit.edu/~fletcher/env-sensing/environmental-sensing.htm |
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| ==== measures ==== | ==== measures ==== |
188.190.225.45