80 Strips PH Test Strip Aquarium Pond Water Testing PH Litmus Paper
$13.99
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DIY Supplies:Plumbing Display Type:Digital With Backlight Or Not:No Paper Size: approx 45mm x 7mm (L x W) The scale reads from 1 to 14: 1 - 3 indicates a very acidic substance. 4 - 6 indicates an acidic substance. 7 indicates neutral. 8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. PH 1-14 color chart in each pack. The test strip color changes must be matched with the pH scale color chart within about 15 seconds.
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