Aquarium Test Strips, 7 IN 1 Aquarium Test Kit, Fish Tank Test Strips for Freshwater Saltwater, 50 Aquarium Water Hardness Test Kit for Nitrite Nitrate Chlorine Hardness Alkalinity Carbonate PH

I usually buy the same test strips each time - but with the COVID situation they became in short supply and very expensive - so thought I'd try something else.On trying these I realised that the scale doesn't make it clear the readings are within the right levels, it has a feint green line around some values on each line but they are not what you would expect and the instructions are next to useless. For instance according to the bottle, if Bromine is ok the bottle has it at 0, it should be 3-5 PPM, same for Chlorine - the scale on the bottle just doesn't make sense.I'm afraid these are going in the bin and I'll dig a little deeper and buy the ones that have worked for years.

I use these in my hot tub. I have a bromine based rather than chlorine based system. These work well, and seem to be accurate. My water is always crystal clear so I think they are measuring accurately. Very easy to read thanks to the key on the back.

The colours on the container were nothing like what was on the test strips. Ended up putting quite a bit of PH increaser in for no need. Have gone back to buying my normal brand of test strips.

Nothing negative to report, good price and good quality, delivered on time in good condition, very efficient service.

Brilliant. They are easy to use thanks to the chart printed on the side and they have made it really easy to keep my pool in great condition

Bought for our hot tub. They work but they are far too complicated when all you want to know is howmuch chlorine to put it.

Seem to give me the information I need

Poor accuracy and the colours wash easily.