It would be nice if the PH meter had an 'auto-off' capability
933928
It would be nice if the PH meter had an 'auto-off' capability.  Inadvertently leaving the meter on after you have completed your testing will drain the batteries in a couple of days.

I haven't tried leaving the solids tester on overnight; but I suspect the same behavior......

Still, pretty good value for the money.
3453840
Need to keep it dry at all times.  I use it for quick PH readings on hydrponics.  A digital PH meter is more accurate and is 10 times more fast.
275279
Summary: Decent results from a bargain pH meter.

The hardest thing about setting this up was getting distilled water = we don't normally have it around the house.  If you are using a pH meter, you need to use distilled water to rinse after each use.

The digital display is a little small, but overall this worked well.  I checked the calibration and then checked against another pH meter I have (also a bargain meter) and they were both within 0.2, which for my purposes (hydroponic gardening is sufficiently precise.

I also recommend drying off the sensor with lint free paper after rinsing with distilled water - a clean coffee filter works well for this and can be re-used after drying.
1312028
Pretty good for individual use. But it can be hard to distinguish pH of 7 ~ 8 or 6 ~ 7
763527
It would be nice to have more control over the display, time on mostly.  Haven't used it a lot yet but very helpful for making bread.
902297
-1 star because it really should have an auto off function, other wise works good though not as accurate as I'd sometimes like can't complain for the price.
2504650
This seems to work rather well.  My wife uses it daily.  The cleaning is a bit of a headache, but not overwhelming.  My biggest pet peeve and the reason I know this is not commercial grade is the cheesy timer.  It's like an old fashion hot lamp or kitchen mechanical timer.  You turn it clockwise and it ticks down.  It's hard to make it stop exactly when the beans run out and its not a good idea to force a mechanical timer to turn off.  Ideally, this would be replaced with a sensor that stops when the beans are gone.
3899759
Great way to maintain aquarium pH at the right price; however, the bottle lacks an accurate means of dispensing just 1 or 2 drops and for this reason, I would refrain from purchasing again unless modification to the aforementioned drop dispensing (lack of) is provided.
1573569
Easy, but somewhat difficult to get accurate readings.  I took a water sample to local pool store and my pH measured significantly lower at pool store than on test strips.  Better for ballpark measurements than precise measurements.
2190375
I bought this, set up in minutes and it just works.

BUT, I tried to enable location based auto on/off, and I often get a "Did not turn on/off as expected error". So sometimes when it should be ON it is not, so I have to turn it on manually. That was to unreliable so I keep it on all the time now.

FYI, the reason why I wanted to turn it auto-off was to save bandwith while I am in the office. and then auto-on when I leave work
3787093
Keep this clean after testing the PH and you will be happy with it. For the price why even complain? It works. Just don't keep the PH'ed water your testing on the meter and put it away, clean it with cleaner or diluted water.

Works great, never a problem. Thanks
3861925
Really nice, but I would like it to have an auto shut down feature or at least a pilot light. I left it on several times and you don't notice unless you touch it.
2556829
It does things you like, but turns off when you least expect it.

Great reception and versality, but has a built in 1-hour timer I can't figure out how to disable permanently.  So I hardly use it anymore. Wanted it for talk shows to lull me to sleep but suddenly it shuts off, and then I wake up (old habit).  Frustrating!  I'd give it 5 stars if it didn't try to out-think my lifestyle!  Auto-shutoff should be a user option, not a standard one.
4404784
The product arrived in proper conditions, and on time. It will be nice to have a sort of probe-holder or arm, like in pH meters, because the reading in the display wobbles around and average EC/TDS value. Besides that, the product produced reliable values against standard KCl solutions. JALS
3503585
This is a great pH tester.  In the past, I have used the disposable pH strips that turn green for alkaline or yellow for acidic.  I like the LED screen on this to give the actual number, not just a color.  When you first open the case, you have to follow the directions and calibrate the meter for the first time. It took me about 15-20 minutes. I'm glad that once calibration is complete, I do not have to do that again. The box comes with a screwdriver and powders to mix into water to calibrate the pH meter.  You will need room temperature distilled water and a couple of clean glasses or glass measuring cups to mix the powders into.  After the initial adjustments are made, the fun begins.

We enjoyed testing our tap water vs. distilled water.  We were surprised at the outcome of the distilled water being more acidic.  Then we tested two different fish containers for our Betta fish.  Next we tested a large outdoor fish pond with algae skimming the water.

I can think of so many things I want to test: homemade kombucha tea, the swimming pool, our fridge's filtered water, our Brita pitcher water, etc.  Clean up for these were easy.  If you test a thicker liquid, it might be necessary to clean the bulb right away.

There's a cap to protect the bulb and testing probe and a compact case to store it in along with the screwdriver and powders.  It comes with a set of batteries installed and then another extra set per meter.

The only "con" I found was the time it took to initially calibrate the meter into the different mixed powders.  I guess that's how it's done though.  I was hoping there was a way to use it right out of the box, but there's not.  I'm really glad that I got this and it's a great tool to have.  My son's taking High School Chemistry right now.  I know this will get a lot of use.
3704128
Seems to work reasonably well. I wish it turned itself off when you fold the sensor stick closed. Or at least have an auto-off function. I haven't left it on by accident yet, but I'm sure I will at some point.
662918
save your money.  the ph meter is useless. everything i tested came out a perfect 7 - amazing.  and  even my arthritic fingers are more sensitive than the moisture meter.  but do make sure you take a copy of the instructions which are printed on the back of their gawdawful packaging BEFORE you open it.  you sure won't be able to read them afterwards.