Ph meter?

[Streze420]

Does anyone know what type of ph meter... is good and reliable i just bought one and it didnt wanna calibrate.. kept jumping from 4.0 to 7.0... i got around 50 dollars to spend so if anyone could recommend one... really appreciate it..

 

[stewy91]

i use bluelab they all need to be calibrated so may aswell get use to it

 

[Why Doe]

Yeah I couldn't get my 17 dollar one to calibrate either I said f it and got this one, it's amazing.

Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit