alanmorehead
Member
What is the current consensus on the pH/temp interfaces for the DIY Reef Controller project?
I am looking for the cheapest way to take a BNC pH probe and get data into the computer. So far, the best option I have found is the phidgets pH sensor (Link). However, $81 seems a little high for this single input device. Isn't there something out there that is more in the range of $10-$20. Is there a schematic for this component that I can build myself?
I have seen the Venier GoLink devices, but the cost is $59 for the DAQ adapter and $78 for the probe. The probe replacement costs would end up killing me. That's why I am looking for a BNC connection.
Is there another option besides BNC or the GoLink for pH input?
Also, same thing for the temp probe/DAQ. What is the cheapest option for doing constant temperature monitoring into the computer?
I need to figure out if I will just be better off buying an Aquacontroller Jr.
I am looking for the cheapest way to take a BNC pH probe and get data into the computer. So far, the best option I have found is the phidgets pH sensor (Link). However, $81 seems a little high for this single input device. Isn't there something out there that is more in the range of $10-$20. Is there a schematic for this component that I can build myself?
I have seen the Venier GoLink devices, but the cost is $59 for the DAQ adapter and $78 for the probe. The probe replacement costs would end up killing me. That's why I am looking for a BNC connection.
Is there another option besides BNC or the GoLink for pH input?
Also, same thing for the temp probe/DAQ. What is the cheapest option for doing constant temperature monitoring into the computer?
I need to figure out if I will just be better off buying an Aquacontroller Jr.