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Water
Test
Strips

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Taste; Vit.C
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Indigo Instruments

Urine/Saliva-Water pH Test Strips

Water is everywhere and essential to all things living. Absolutely pure, freshly distilled water is pH 7 but in practice, drinking water, whether straight from the tap or bottled will be around pH 5-7-6.2 since atmospheric CO2 slightly acidifies it. Any of the strips listed below can test water, urine or saliva. Choose the one that best suits your needs in terms of range (narrow, medium or wide) & whether you need to measure in steps of 0.5 or 1.0 pH units.

Urine can range from 5.5-7.5; saliva around 6.2-6.8 so either the 5.5-8 or 4.5-10 strips will work.

If you buy alkaline/deionized water, it is always wise to test it to be sure it has not been exposed to air.

  • pH 1-14: wide range, triple pad, 1 pH step
  • pH 4.5-10: medium range, triple pad, 0.5 pH step
  • pH 5-9: narrow range, single pad, 1 pH step
  • pH 5.5-8.0: narrow range, single pad, 0.5 pH step
Note: All test strips Made in USA & are Q/A'd against NIST standards.


Use triple pad for best reading accuracy.

Click on images for close-up; on "Each" for quantity discounts.
pH 1-14 Acid Base Test Strips pH 4.5-10 Acid Base Test Strips
Wide Range:
pH 1-14 (1 pH step)
Medium Range:
pH 4.5-10 (0.5 pH step)
P/NDescription QtyUnit
33811-0114pH 1-14 strips, ~100/pack1-914.95
33811-4510pH 4.5-10 strips, ~100/pack1-914.95


Use single pad for ease of reading.

Click on images for specs.; on "Each" for quantity discounts.
pH 5-9 Water Testing Strips Acid Base Test Strips pH 5.5-8.0
Narrow Range:
pH 5-9 (1 pH step)
Narrow Range:
pH 5.5-8 (0.5 pH step)
P/NDescription QtyUnit
33812-5090pH 5-9 strips, ~50/pack1-96.95
33812-5580pH 5.5-8 strips, ~50/pack1-98.95




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