Indigo® pH 4.5-10 test strips are ideal for accurate measurement of most foods & drinks as well as urine & saliva. Only $13.95/100 strips.
Typical shelf life of 3 years or more if kept sealed even after opening. The 1 strip for all your health concerns.
pH 4.5-10 triple pad test strips are good for enhanced pH verification. Use them for saliva, urine and science fair demonstrations where resolution is needed for a narrow range than the 1-14 range. This can be very handy when testing different foods and drinks which occur mostly in this range.
The 3 test pads give 0.5 pH resolution and with practice, one can estimate 0.25 pH intervals. See some of the examples below.
The pads on an unused strip are calibrated at ~pH 5.75. Changes can be subtle & appear different under fluorescent, incandescent or sunlight. So, experiments done in the kitchen might appear a bit different when repeated in a school gymnasium.
Note: Packaging may be different than that shown while we transition to new packaging for 2023.
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I bought these to verify what the contractor said. I'm glad I did because they proved him correct. My tap water is close to 6.5pH, but the "5-gallon filtered bottled water" from the self-fill machine at the grocery store is between 6 and 5.5 pH. The grocery store water is slightly more acidic than the water from the sink/tap. The normal range is said to be 6 to 8.5. I'll have to research the meaning of these findings, perhaps try another store's water and see what I get. The purchase was well worth it!
Surprised by the new packaging, but think it will be better than the old. Delivery as always was quick, we will continue to purchase these test strips.
These test strips are extremely accurate and I will only purchase the test strips from here! Thank you
Thanks for kind words. Some readers might find this interesting: How Do You Use a pH Test Strip?
Excellent product. The strips are packaged well and easy to use. The triple pads make it quite easy to read very accurately. The order was very well packaged and delivered quickly.
Glad you liked them. Others may find this useful: How Do You Use a pH Test Strip?
Thanks for your review and continued support. The packaging was changed by the manufacturer at end of 2021 to allow increased protection, quicker dispensing of strips and allow the new label layout to be utilized.