I want to use them for soil testing. Can I get more accurate results using the 4.5-10 pH scale than the 0-14 pH scale?
1812310
i have only used them for testing drinking water and they do not work. the ph level does not change colors. you should go to a home depot type store and get a soil testing kit from their garden department. i should have returned this product but since i forgot too now it's wasted money.
1502099
yes just this. how ever you should also use "PH Calibration Solution (PH 4.01)" to ensure your pH pen is set right.
2112109
The one I received was pretty close about 0.2 if I remember correctly. It is not really an issue though as it comes with chemicals to mix calibration solutions. You just need to mix it with distilled water.
1606898
You have to use your judgement. For example, if chlorine is very low, add a lb. or two of shock. Speaking for myself, I like to keep the chlorine level on the high side.As long as pH, alkalinity, stabilizer are pretty much within OK ranges, I don't worry about it, assuming the water is clear. But, do note that if your pool water is not stabilized, you will have to use much, much more chlorine. These test strips are ridiculously easy to use. They provide all the information you need in seconds, in an easy-to-read format. Hope this helps.
813296
Great name! Thanks for the question. The ph range is from 6.0-10(in the red) - end padThis test kit is nice and easy, tests for Bacteria, lead, pesticide, nitrates and PH. I have been testing evrey 2-3 months since I am in PA along the fracking belt and recently my township has converted to Philadelphia public water, no more well water. All the best!
859146
yes,it test any water ph all u need is 1oz of water to be used before watering-very accurate.best for testing water ph from 5.0-8.0 in a test tube takes 10 seconds to do.
1884899
I don't think so, the PH range on these strips is 6.2 to 8.4. These strips are very good but not for the PH range you're looking for.
166618
I tried it in liquids to see if it is showing the right numbers (vinegar vs water), but I am not sure if it is accurately shows the liquid PH.
1139399
I can't tell you which test kit is best for lawns, however I used the Luster Leaf Rapitest to only check the pH value of my lawn (Acidic or alkaline) to determine how much lime to use; if any is required based upon the pH value.
1992606
I have no idea what the PH level is and I am not having any luck with this soil. I have not had such a problem where the seedlings die. Bagged soil seems to be very different lately. I am not sure if I can know what is in the mix. I am not happy that it does not seem like anyone can be trusted. I am just disappointed. Sorry that I can not answer your question.
2228398
It depends on the makeup of your soil. No one can really give a definitive answer unless they know what your soil is and what you intend to plant. You can get a free soil pH test from your Master Gardener office and while there they can tell you about your soil and how much water is needed for what kinds of plants.
1369334
I use the tester to check the acidity in the water for my plants. I add lemon juice and vinegar (equal Parts) to raise the acidity in a five gallon bucket of water. So I will say yes to your question. The tester seems to work better in water than in soil. I hope this helps.
1940815
Calibration is not possible to the best of my knowledge. I have found it to be accurate + or - 1 or 2 grams and I think that is more a sensitivity issue (placement, etc). Hope this helps. As noted above - "tare" is certainly possible if that is what you meant.
460671
These probes are usually of a bi-metal function and should be pretty linear at the temperatures that you want. I checked mine with a candy thermometer and it was right on at 124F. and my soil tempt. was 42F at 4 inches. The probe can not be introduced and extracted by the gauge- it will separate with misuse. Yes it should work fine if the soil is soft enough. and the depth isn't much more the 4-6 inches.
787527
There should be a packet of powder that you add to distilled water. Then turn on PH meter, and dip into solution. Hit and hold CAL until it flashes. Then pick the number that is closest to the solution you will be testing (4.0-acidic 7.0alkaline 10.0) then hit ENTER. When it's calibrated it will display END. Repeat once a month to ensure PH meter reads correctly
904211
You make a slurry of equal parts screened soil and distilled water. Then you train the slurry and use the pH meter to read the pH of the filtered liquid. That is the pH of the soil sample. Simple, eh?
755559
A standard litmus kit cannot accurately test the pH of water due to the chemical traces on the strip and the reaction process.....Seriously? Those chemical traces and the reaction process are EXACTLY how pH is determined. This is like saying a speedometer can not be used to measure speed because it measures distance traveled over time...... /smh