EASYTEST7-Way Pool Test Strips, 150 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine

I have a weekly pool service but atill decided to get my own test kit to see if the pool guys is actually doing what he’s supposed to. Well, i started asking the pool guy to send me a pic of the test strip every week, which i personally think should have been done in the first place so owners know their pool’s chemical balance.So i matched the pool guy’sntest result against this one from amazon and they’re pretty spot on. His shows chloring level a bit high (about 2 shades darker than what it should be) and mune showed the same shade for chlorine.I would highly recommend getting your own test stripes even if you already have a pool giy. This way you can at least check the balance of chemicals on demand.

Ran one test on a newly filled spa and prior to adding any chemicals. I had no difficulty with the color matching. Is it accurate? That I can't say without taking a water sample someplace to compare, but based on what I know about our water supply, it seemed right.

They arrived and they are what they say but it's really hard to read the writing on the bottle because of the size and the color blend. I use the test strip but then I didn't know what to do with it because there's no instructions on anything so I guess I need to add instructions somewhere on what to do with the reading

The has 140 7-way strips, but only 5 copper and 10 salt. I bought it especially to get the copper and salt tests. My bad, I did not read close enough. Be aware.

Easy to use, accurate , had water tested after I used a strip at start up . I’ve used many different brands of strips . I highly recommend this

Awesome product easy to use results in one second very accurate. No messing with liquid. Great for saltwater pools great price

Fool proof and easy to read. Makes it easy to balance the pool.

Got these specifically to just eyeball how far out my CYA was. Few years of tabs only in an intex in Arizona and had real high CYA from using just tabs. The strips showed CYA was in between acceptable levels. Broke down and got a real CYA test kit, and I was well over 200 which is not good. Just got done draining and refilling the pool and everything is back to where it should be. Other tests on the strip seems pretty close, but don't trust the CYA, not even remotely close.