I purchased this meter for my husband to use in his wood working shop. When we received it, he told me I purchased one that was too small for what he needed. I was trying to figure out what I could use this very nice meter for when it hit me. I can use it, to help me to keep from over watering my house plants. So I started using it to test my plants soil to see if they need water or not. I may have a green thumb after all with a little help from my digital moisture meter.