AquaChek Select Connect 7-Way Pool and Spa Test Strips Complete Kit - Pool Test Strips for pH, Total Chlorine, Free Chlorine, Bromine, Alkalinity, Total Hardness, and Cyanuric Acid - (50 Strips)

I like strips for their ease of use, and I really like these because they measure CYA/Conditioner. I have been impressed with the accuracy, though they are not as on-point as liquid reagents. In general, though, they are "close enough," and they certainly are fast. I have used the app only a couple times. It works remarkably well, though it takes a while sometimes to get a good photo of the strip and I really haven't yet figured out why it sometimes works and sometimes does not. When. it does work, it's kind of cool. I'll be trying to perfect the technique. I've seen comparisons with much more expensive kits, and while the other kits are more accurate as far as knowing the exact level of various thing measured, these proved to be consistent and as accurate as the range can be. In my use they are very consistent and the items that duplicate my other test kit (total chlorine, free chlorine, PH, etc.) are almost spot on -- again within the relatively wide range each color splotch represents -- with that kit. The chart is easy to read.

Very easy to read chemical amounts

these work pretty well. you have to realize all of these test strips are not 100%. CYA color does not match so not sure why. Can not find the App on the iPhone store so I would check for it's availability before purchase if you want to use that.

They are easy to use, the app is a bit unreliable as sometimes it shuts down and doesn’t work properly, I emailed costumer service about that and it’s a known issue, so if you’re buying them for the app I wouldn’t recommend them. But if you’re not counting on using the app for each test then this work well!

If you are looking to use the app, DO NOT BUY THIS WORTHLESS POS! It is literally impossible to scan the strip. DO NOT BUY! I would give zero stars if I could

Easy to use

Like these for regular testing

Product is easy to use and performs as expected.

Brilliant. Fairly accurate and compared to actual store this is confirmed. Getting v expensive which annoys me not the best one you can get

app just not work - tried on 3 different iPhone's , every one had same issue out of focus just would not take picture , wasted so many strips and so much time trying to get this to work.

Seams to work accurately.

C'est les meilleures, mais chere - c'est pour ca j'ai essaye toutes les concurrents (une demi douzaine au moins) mais je n'ai rien trouve de valable - donc j'utilise toujoujours les memes

I have no idea how this product has so many positive reviews. Go check the reviews for their AquaChek app on Google Play Store! I specifically bought this product due to its app support and automated detection, not for manually entering values. The camera fails to capture in both Auto Capture or manual clicking, saying that it can't detect the strip. Every single review says the same thing. Therefore, it's absolutely useless! Don't waste your money, and instead just buy strips without an app, which are much cheaper.