Digital aquatic ph good?

[Jakef150]

I have RKL

I have trouble with ph cuz it kept screw up with recal with 7.00 and 10.00

I couldn't figure out and gave it up. I uses API ph test kit

So I got me think to order pinpoint ph cuz its good stuff

Tips ? Advice ?

Thanks

 

[NewfiDog]

I use the pinpoint works fine.

 

[FlyTekk]

I use digital aquarics ph probe for rkl. Works fine with me. Recalibrated it yesterday. What was the problem with yours?

 

[FMF0331]

Jake, before i switch to neptune, i was using pinpoint. Never had an issue with it.

 

[Jakef150]

DA ph probes always act up and way off the numbers..I gave it up with calibrated.

Thanks
Jake