How to make a cheap soil moisture sensor – Heavy Duty Version The Cheap Vegetable Gardener. Best DIY cheap soil moisture sensor 4.4 years ago cheap, electronics, moisture sensor, water My first version of my cheap soil moisture sensor has worked great for me but it did have a couple flaws.
The first issue was construction, though I had great luck on my first attempt though after trying to recreate additional sensors given the small amount of gypsum between the sensor and the probes were so thin it was extremely easy to crack the sensor and I normally have about a 25% success rate on later creations (must have had beginners luck on the first one. Air Command Water Rockets Home.