Ph tester

[Johnny5968]

Anyone every use a Milwaukee Instruments PH55 Waterproof Ph Dual Level LCD Tester? Just wondering

 

[gourmet]

I have one and I had to recalibrate every time. I dumped it and got a different one.

 

[Hushpuppy]

I used to have one but had trouble keeping it calibrated. It finally reached the point that it wouldn't calibrate anymore. I bought a Bluelab pen and really like it. My Bluelab is far more reliable than the PH55 was. My Bro also had the same problem and had to go through 3 of them before he bought a bluelab combo set.

 

[Locked]

I got tired of dealing with pens a while ago and got a unit that you can change just the probe on. They would tend to need constant calibration.