Atlas Scientific EZO-pH Embedded pH Circuit .001-14

Works great. I had issues at first but it was due to not fully reading the datasheet. I could not get this ph circuit to function properly with the Raspberry Pi. Half of the time it would display incorrect results or not show at all. The device was being powered incorrectly because I had it plugged into the 5v and not the 3v pin on the raspberry pi. Hope this helps someone who runs into the same issue. After connecting it to the 3v pin, it functions flawlessy.

As someone who once sung the praises of Atlas Scientific products, I feel obligated to spread the information that they leave out of their data sheets and documentation. First and foremost, there is NO SUCH THING as a glass bulb pH meter that can be indefinitely submerged and maintain a high degree of accuracy for more than a few hours. It took several hundred dollars, a lot of researching, and hours of trial and error to find out that pH probes are NOT designed to be out of their buffer solution for more than a few minutes. Don't make the same mistakes I did.

Using this interface board is really a no-brainer. Atlas has really made accurate reading of pH probes so simple with this board. I use this board with an Atlas pH probe and it's interfaced to a Raspberry Pi 3 Model B using I2C for communications. I can't say enough good things regarding Atlas or their equipment. Use this pH board and probe if you want accurate, easy, painless pH data in your projects!

The stamp requires moisture free and very clean environment. So, make sure that you put it in a vacuum sealed protective box. I had to buy several of them and they all develop problems with measurements if the stamp is even briefly exposed to anything dirty or corrosive in the air around it.

Works great in my pi 4 based aquarium monitor using the i2c interface. I have the probe constantly submerged in my reef aquarium sump. I poll readings ever 60 seconds. I replaced an analog interface that used the 4502C. Such a big improvement in stability. I am also using the Atlas Scientific isolated carrier board. This has removed all the induced noise coming through the probe I was dealing with when using the 4502c. I also like that it internally holds the calibration data. It was easy to program calibration buttons and a status display with the well written datasheet material. I also like the ability to read what percentage that the calculated slope in my probe varies from an "ideal" probe and the millivolt offset from pH 7.0. This lets me track the health of my probe over time since they do eventually need to be replaced.

Very Sensitive pH sensor, don't touch the components on top of the pH sensor you'll fry the think or won't read accurate pH values. You are warned, I had to buy 2 of them because the voltage regulator of the pH very sensitive. I wasn't reading the right values, I tried to set it to manufacturer mode and recalibrate it but it won't calibrate to 10 pH.

Works very well. The documentation is great and easy to understand. Cannot recommend enough

I've gone through a few of these so far. My current one is in an automated hydroponic grow tent where I have graphs and data on everything imaginable in it. I've been amazed at how sensitive these have been to humidity. Any drastic humidity shifts can cause some serious spikes in PH. The only time these spikes happen is when I open the tent. The issue then is that my system will detect a PH issue and start dispensing PH down or up when it's only because I opened then tent. Once the humidity levels out then the PH stays stable. This has been the same with multiple PH ezo boards. Other issues I've had is the board losing the ability to store calibrations. This happened with my last one. Replaced it and was able to calibrate just fine.

Works great. Documentation to set it up is online. Easy to follow. Seller through in an extra BNC connector for me. Yay!! Thank you. Took a bit to arrive, but packaging was great. Would buy again. Is there another place in Canada to order these from?