BluelabMETCOMPLUS Combo Meter PLUS for pH, Temperature, and Conductivity, Easy Calibration, Works in Rockwool and Soil

Like this machine and it's functionality, works very well and easy to use. Could use some more design thought. The pen when not in use need to remain submerged in the storage solution. To do this Bluelabs has a very small "pill bottle" type container at the tip of the PH pen. The container is held in place by friction and a rubber washer. It's a little awkward to remove, but even worse once removed can be easily tipped over or misplaced. The washer itself is just waiting to be dropped and roll away!Also I do with the EC part of this was also removable like the PH pen is. The cabling of both the EC and PH pens are cumbersome when both are connected to the machine. As I mostly use the PH pen I wish I could disconnect the other pen and store it away for when needed.

I have had this product for about 10 months now, it is by far the best ph meter I have ever used. Taking slurry samples and testing soil ph has never been easier. Its all in the one controller and its super easy to calibrate. I keep the probe in the storage solution and it works wonders, last night I went to calibrate my meter for the first time in around 6 months and it read 7.0 and 4.0 spot on.. I used to have to replace cheap meters every 6 months and who knows how accurate those readings even were.. Inspired me to come write a review!

Yes, may be the best, also why I placed an order for, works fine, but to expensive for most doing our hobby like me, with only a few plants.BTW: do it matters, if the PH on any cheap products is 0,3 +/- ? :-)

Very accurate device.

Item box arrived and is teared up! Already been opened. I see debris on the monitor and inside the probe. The storage solution bottle I bought with it is broken too. For a 400 $ unit I would have like to get a new one, not a refurbished or an open box