Hello Every one,
I need PH sensor for Smart irrigation system, i had searched many PH sensors but these are expensive.
If any one know something about PH sensor then please tell me!
Thankx
pH sensors are expensive by nature. (never seen a cheap one)
this site has a good reputation - https://www.atlas-scientific.com/product_pages/sensors/ph-sensor.html -
they also provide Arduino code
Search for "ph sensor" at the http://www.sparkfun.com website.
this site has a good reputation - https://www.atlas-scientific.com/product_pages/sensors/ph-sensor.html -
they also provide Arduino code
As an Arduino fan and a long-time professional chemist, I looked at this site. I agree Atlas-Scientific knows their stuff. A good recomendation,
As they point out, you cannot attach the pH sensor directly to an Arduino. You will need on of their preamp boards.
As for cost, you can obtain fron them for $100 a setup that cost me $3000 (2014 dollars) back in the dark ages. We are getting spoiled rotten by Moore's law and the Chinese.
Joe