What's The Purpose Of A Ph Meter??

Wuts Good..?,
Ok So I've Been Growing My Plant For About 3.5 Weeks Without Using A Ph Meter. Will That Effect My Plant? I'm Gonna Pick One Up Tomorrow But Can Someone Tell Me What Its For And How To Use It?? And What's The Cost Of A Decent One?

Thanks In Advance!!!

If your plant looks fine than its fine. A PH tester tests the acidity of your water. and it depends if you just want a meter tester, or like a digital one. Anywhere from 10-50 bucks.

So You Stick It In The Water Rather Then The Soil Right?

you can test soil ph

Soil pH Testing, Soil Test Kits & pH Control at Home Harvest Garden Supply

but ph testing water is easier than thought

HomeGrown420 - Homemade pH tester for about $1

Theres some testers that can test both solids and liquids.

you may as well grab one, its only going to help. maintaining an ideal pH is key to having nutrient absorptivity at its best.. at least that makes sense to me, i could be wrong.. also, don't skimp out and buy litmus papers.. they're cheap, but they're a bitch to work with in soil, and they can only be used once.. if your growing dro or aero then they'd be fine

Fa'sho.... Thanks To All!