Why TDS is NOT equal to Total Dissolved Solids in hydroponics
Electrical conductivity is a very commonly used measurement in hydroponics, yet a very poorly understood one. I have written several posts about conductivity in the past (1,2,3) and today I…
Read More
Creating a robust pH/EC monitor for hydroponics using Atlas probes and an Arduino
A few months ago I talked about how you could build a simple sensor station for your hydroponic projects using an arduino (see here). However this small project used the…
Read More
Comparing the conductivity of two different solutions
Conductivity is perhaps the most misunderstood and erroneously used measurement in hydroponic culture. This has a lot to do with conductivity also being called a “totally dissolved solid” (TDS) measurement…
Read More
Probes for constant immersion in hydroponic nutrient solutions
If you have a hydroponic crop then you probably have to measure and monitor the pH and EC of your nutrient solutions. This means taking probes out of storage, ensuring they…
Read More
How to prepare your own solutions for EC meter calibration
On a recent post I talked about how you can prepare your own solutions for the calibration of your pH meter. However hydroponic growers not only need to calibrate their pH…
Read MoreGrowing a Hydroponic Garden Without a pH or EC meter
So you have decided you want to start a hydroponic garden but you do not want to use a pH or an EC meter. It is fairly common for people…
Read More
