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.

I like what I can check with this strip.

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.

I bought these after seeing them recommended online. They work well and are easy to read. When I ran out, I picked up a different brand of test strips from my local pool supply. They didn't work nearly as well as the AquaChek strips, and in fact they were misreading the chlorine levels (verified by taking water sample to pool supply store). I switched back to AquaChek and will only be using them for quick tests.

Doesn’t run down so you can read like the cheaper ones I purchased from Amazon. Works great. Recommend and easy to read. Good value

An absolute nightmare. These strips had me chasing imprecise and changing hard water and oh values for two days now. It’s a moving target, and because it has benchmark values it defaults to instead of values that show transitions, it’s just a horrible time-wasting experience. The app is also just awful. Trying to line up the strip is difficult, and you’ll be trying to do it 15 times trying to get the ph values right, and you’ll never get it right. I’ve been using ai to help dial it in, and even Claude.ai is OVER it. Buying a Taylor K-2006. I just can’t do these strips. Before these, the JNW strips were definitely an improvement. Get those if you must do strips. Even my old JNW strips did a better job than these.

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!

These work just as well as the pricier ones and are super easy to use. With consistent use, they helped me keep my pool water sparkling and clear all summer!

These come with a booklet and its a really nice 24 page book which is a complete guide to pool and hot tub chemicals. It explaines in great detail (but easy to understand) the purpose of each chemical and how rhey each work together, why and how to keep them at the proper levels and there are many charts for the calculations so you don’t have to do the math. This is a book that the pool & hot tub sale people should provide when you buy a pool or hot tub but if they did you wouldn’t be so dependant on them for chemical help and sales...thank you AquaChek!

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.

Quick delivery. Strips are very accurate (compared it to a.pool shop).

Exactly as described and fulfilled my expectations.

I wouldn’t bother. They are inaccurate and the app is pointless unless you input data manually. Purchased two, sent two back.