5 Way Pool & Spa Test Strips with Smartphone App W-5P – 50 ct Water Test Kit, Tests Free Chlorine, pH, Hardness, Alkalinity, and Cyanuric Acid Levels with Instant Reader App by Spark Diagnostics

Wow, ordered on Wednesday, received on Thursday (free prime shipping, normally 2 days). Awesome product! I have trouble matching those color coded strips to the bottle and I can't afford the expensive digital pool water readers. I installed the Spark App on my Ipad. It steps you through what to do. Dip the strip, even has a timer for the 30 second wait, take a picture of the strip and you'll receive your results. The app tells you your ranges or you can read it off the bottle, your choice. I normally keep my test results in a notebook. This will store your results for you and you can access easily from the app. It's exactly what I had hoped for. Thanks for such a great product and such a reasonable price. :)

Love the idea but have a couple issues. The app does not list what the ideal range should be. In fact, it’s not listed on the box or on the container itself. It doesn’t even tell you if the result is high or low; it only shows a green dot if it is within range. This seems like a gross omission for test strips. Ideally, the app would show your result, the ideal range, and what you should do to correct it if it is out of range. Also I’m concerned about the accuracy. From picture to picture, on the same test strip between 1, 2 and 3 minutes, my results have varied.

While using the test strips, it turns out that the pH section was not accurately displaying the pH of my spa. I have been adding acid each week to try and balance the pH, only to find that our pH WAS fine, and now the spa is extra acidic. We are going to have to try and rebalance again, this time with a testing kit that works.

Very happy with the purchase - don’t buy other cheap productsI couldn’t be more happy with the purchase. Initially I was wary of the slightly higher price that I was paying compared to other cheap products. However, it is worth it - trust me people. If you own a smartphone, this product will make your life so easy. I always hated comparing the color charts with curvy labels on the box. No more reading chart one parameter at time - I just click the photo and my phone does the rest! Great app and concept.

This product does not work. The strips told me the free chlorine was 0.5 ppm. I took it to get tested at the pool store and the free chlorine was actually 9 ppm. The pH, alkalinity and hardness seemed closer but not as accurate as the pool store. Don't waste your money.

Excellent quality product. I was quite happy with the accuracy of the Spark Diagnostics app that comes with these strips. They were easy to use and the app was quite accurate and easy to double check results.

I have been looking for something like this forever. While the product holds promise. It took trying to make it work on two different iPhone 7plises and 2 doffferent versions of the os to make it work. On the plus side their email support is excellent. I am a tech geek so I will put up with an almost ready for prime time product.

The strips are large, high-quality, easy to use, and easy to read, but the best feature is the free App that enables you to take a picture of the test strip, and then the app does all the photo analysis to instantly give you precise and accurate numeric results, and recommendations for spa chemical additions. Much more consistent, accurate, and precise than trying to visually discern subtle changes in color against a color chart.

This is my second purchase of these test strips. If i test with the original set, my PH is low, testing with the new set PH is high. when I test fresh water, Cyanuric acid is high. I am reluctant to treat the PH.

Great idea but unfortunately they are just not accurate at all. Readings are so out, the pool had 6ppm of chlorine and this said it had nothing.

Nulla da dire sulla consegna che è avvenuta nei tempi previsti. Il prodotto però nel mio caso si è dimostrato impreciso e contraddittorio sia nella lettura con app che confrontando la scala colorimetrica. Appena ricevuto il kit ed installato l'app ho effettuato 3 test in parallelo con un classico kit con pastiglie e con un lettore elettronico di PH correttamente tarato.Il PH letto dalle spark è risultato basso in contrasto con gli altri test, il cloro è risultato alto rispetto il test con pasticche.Sto effettuando il reso.

Tiras imprecisas no marcando ni lo correcto el pH siempre marca lo mismo haga las pruebas que haga, instrucciones imprecisas tanto en caja cómo por web del fabricante, devolución del producto por no cumplir la calidad mencionado con la precisión que se detalla.

Non è molto preciso, rileva parametri non rilevati dai soliti strumenti, tipo l'isocianuro, ma i valori rilevati sono spesso sballati