Universal pH Test Paper Strips pH Test Strips Roll, pH Measure Full Range 0-14， 16.4 ft/Roll (4 Rolls)

Seem accurate enough and very well packaged

after a work related incident we decided we needed to have testing strips so we could verify for ourselves what the mystery floor liquids were instead of taking someone's word for it that its water...!! These little rolls are great as they prevent the packet getting wet or damaged so can be thrown in the glove compartment of the vans. Great price for peace of mind.

Alright

Worked well

Work as described

Rubbish - the strip dispenser is so badly made it didn’t actually work so we just took the roll out and cut strips. Then the strips didn’t work, staying the same orange shades no matter what we dipped them in. Ruined the science experiment I was doing with my child.

These are great for science experiments. Each dispenser contains a lot of indicator paper. Each dispense arrives with the paper roll wrapped in foil inside. Undo the foil, reassemble, short pull and tear and that's it ready. When using these there is less risk of contaminating the paper than an indicator book. Have tested these across the complete range pH 1 to 14 and colour intensity is good. Add some strips to a few ml's of water and they will give a decent colour indicator solution. Good value. Four dispensers will last ages.

Good value for money. Helps alot and very easy to use.