BOJACK pH Test Strips Universal Test Paper pH 1-14 Litmus Paper for Soil, Water, Saliva, Cosmetic, Pet Food ＆ Diet pH Test (5 Packs of 400 Strips)

I bought these for homeschool science experiments and they have worked really well. The colour change is clear and easy to see, which makes it simple to explain what is happening without any confusion. The strips are easy to handle and the booklet is straightforward to read. We have used them to test different household liquids and the results have been consistent each time. They feel good quality and there are LOADS in the pack, so it should last us a while... more experiments than we can conduct! A simple product, but it does exactly what it is meant to do and makes practical science at home much easier.

Bought in an emergency as my very expensive PH pen has just packed up and I check the PH of my hydroponic solution every 3 days, as I can not afford a replacement Blue lab just yet I decided to go old school and get litmus paper (does anyone still call it that?) and it does the job. I keep my PH between 5.2 and 6.2 and obviously this paper does not have that degree of accuracy but it at least tells me I am in the right range and not dipping below 5.0 as occurs with nutrient absorbtion over a period of days. I checked the paper with a few liquids such as vinegar, lemon juice and bottled water and it it does give an accurate reading. Only a fiver for 5 packs of strips and each pack is individually sealed in plastic so very good value too. Better than buying one of those useless yellow PH pens for £7.99. Cheap and they do the job.

Great item

It is easy to use, however it goes ver alkaline of very acidic to get any decent reading but for the price is not bad, I tried it compare to my digital PH meter and sometimes the reading is close but , I DJ do myself using this most times especially since all formulation am testing it with us not commercial. It is easy to use with quick result. I prefer the wheel one I used before this though cos you can wipe it if is wet when comparing the test but with this the paper are soaked easily.

Bought to measure the soil PH in my garden. Very useful for getting a rough indication, although it's worth doing a few tests just to be confident on the result. But, for the money, and the amount you get I will probably never need to buy these again and so the value for money is great.

The instructions in the listing are backwards, I tested this with citric acid but they do work. Having never used litmus paper before this confused me massively for quite a time.

Fantastic! I couldn’t have expected anything more or anything less. Does exactly what it supposed to. And does it accurately. No messing about calibration, quick and efficient. Highly highly recommend. Get this before you start messing around with the digital meters and gauges. I’ve tried some of the cheaper digital ones. Right here on Amazon, they all had glass probe which breaks if they were knocked a little. They would fail to operate if the probes dried out. At £15-£20 a pop I couldn’t care for replacements. Then there’s more pro level equipment directly purchased from garden and agriculture businesses, cost hell of a lot more and require a fraction more maintenance and the probes do cost a little more to replace but a whole lot better. But for my needs for gardening at home, absolutely. No messing around quickly test the ph and ph down as required. It does leave some amount of dye in the solution you’re testing, so test a sample in beaker separately.

Accurate enough for a home user who doesn't need to pinpoint down to a few decimal points

Na ja...ziemlich enttäuscht. Zeigt natürlich was an - aber könnte zwischen 3 Farben passen. Schätzomative. Und Papier tränkt sich ganz. Eher nicht

Prácticamente todos los papeles salen del mismo color, si hay una diferencia pero difícil de apreciar