I want to monitor the moisture in the soil so I don’t over/under water. I have seen suggestions for purchasing meters on eBay but never see specific types. I have a couple of the 3 way monitors, but would like to put a meter in the soil and leave it. I want one for each pot/plant. Is this a good idea?
Coperthwhite7 made mention of buying them on eBay for $5. How do they work? What size? Etc.
Any and all help is appreciated.