Can I leave a moisture/light/meter in the soil??

Hi.

Long time lurker.

I bought one of these. It says on the packaging not to leave it in the soil. But I found a good root spot and I don't want to keep poking the soil every time I check it, so can I just leave this thing in the soil, could it really cause any damage?

no.. you cant.. you have to keep the prongs clean and dry in between uses or it will affect the reading it gives.. cant tell you why it does that.. i would assume from build up of sorts on the prongs.. but i dont know for sure.. can tell you though it cant be left in the soil tho.. it could even have to do with the type of metal the prongs are made out of and the reaction it could have with the soil over time and possible rusting it could do... again.. thats a guess as to the why part tho..

does the kind he has in pic work very good?

i see that it only goes up to 2000 lumns or i guess thats what that is

i had the same meter.. the moisture park worked well.. but the ph and light meter sucked ass... its worth it just for the moisture meter tho..

i just tried that one, i put it in some dry dirt and it showed it had moisture so i broke up the dirt and sure enuf it was alittle damp guess it is ok to have

I actually have this same meter i placed it in some miracle grow potting soil and the meter was bouncing at the highest PH i then placed it in some Happy Frog and then it read 6.5, so the PH must work some what. The Moisture meter works well as does the lumen meter if used properly. Good investment!

lumen meter only goes to 2000 i use cfl and as close as i have my lights it reads 2000 just off one light so i really dont know how much light i am getting