Review on CityFarmer Digital pH Meter for Hydroponic Nutrient Solution Testing, with 2 Pack Calibration Solution Mixture, Accurate & Reliable Results, Built-in ATC by Molly Gordon
easy to set up suitable for testing, measuring and checking
I had a digital device that needed calibration powder to set the pH but I found it can be slightly inaccurate. I bought a calibration solution but the pH is different from the powder that came with it, so it's difficult for me to test and adjust the pen. So I got this one so I can always setup Ph manually with my solution. The disadvantage of this is that it only has one decimal place, in contrast to digital it always has two decimal places. But it reads faster than digital and is easy to use.
- trial period for one year
- not as thick as other picks
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