Quote Originally Posted by Mr. Ninja
Ok, thanks. But I was thinking more in the range of one that just gives off a certain voltage, to make a diy version.(and to maybe incorporate it into an automated monitering system, so if I left I could check up on it.)
If you are electronically inclined and able to do some programming, there are diy options available. They are some Arduino based ph sensors. I am sure there are other micro-processor based ph sensors that you can do as well. Search it up.