New pH meter

damn that thing looks like you could change the batteries instead of breaking it trying to open it lol lol the one i got was about 15 bucks from Amazon and it has served me well as i do use it like every other day and check calibration twice a month

i hope it teaches you the values of when to add Ph Up to the mix or Down as each kind of Nutrient use will effect the balance - some more than others -- i try to test at every step from full jug to each nutrient added or not - i know mine did me with the right training lol lol that is with using just about the full line of Fox Farm Nutrients ( soil )

I've never seen that one before. Did you get it off Amazon? Also, have you been using storage solution?

Looks like its a decent one.