Full pH test range: our product offers a complete test range from pH 1 to pH 14, whereby 1 is the acidic and 14 of the most alkaline value. Easy to read thanks to colour-coded strips Colour coding. Easy to understand colour chart so you can interpret your result clearly and easily Quality material: made from high-quality pH paper for almost instant results Wide range of applications: you will find a wide range of applications for your patmus paper, from testing soil acids, water/soap neutrality. Can be used in teaching science projects, aquariums and much more. Colour: picture color Material: paper Package Contents: 2 set * Test strips (1 set of 80 test papers) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.