Handheld pH meters?

[cmor1701d]

Anyone able to recommend a handheld pH meter. I'm currently using Salifert and eye issues make it hard to determine the resulting pH accurately. This would be used for my QT tank while doing hyposalinity treatment.
My DT has a trident probe

TIA,

 

[HankstankXXL750]

I use a Hanna HI98107. They have several options. I use their salinity (conductivity) tester also.

Says you have to recalibrate before each use, but I have found it is reliable if you store it in their cleaning solution.

 

[cmor1701d]

Thank you. I'll look it up.

 

[HankstankXXL750]

Check all your tanks occasionally after you have calibrated. I have an apex that is reading high, even after another calibration on that system. Hanna read really close to my other 5, but lower than apex on this one at the same time.

 

[cmor1701d]

Great advice. Thanks again. Btw, Hanna released a new version of the tester.

 

[cmor1701d]

Check all your tanks occasionally after you have calibrated. I have an apex that is reading high, even after another calibration on that system. Hanna read really close to my other 5, but lower than apex on this one at the same time.

Thank you for the recommendation. Now that I calibrated the meter using 7.01 and 10.01 both the DT and QT tanks are reading 8.2 .
The QT needed some buffer as I'm doing hyposalinity treatment there and the RODI water is well below 8.