Water Monitor for Pools and Hot Tubs, HPR1710 (DISCONTINUED)

I was concerned about buying this honestly as it’s not cheap and some of the reviews were less than favorable. However, I gave it a chance and am grateful for my decision. This is my first Amazon review in 10+ Years. To be honest I’m grateful the company created this product and I’m more than happy to give them praise. The iOS app is beautifully designed and since I’ve owned in a month they’ve already improved it by extending their analytics reporting. Also - when I first bought I couldn’t tint their app in the store but their support was super responsive (same day - real person) and sure enough all good the next day. I’m such a fan I’ve told others I know that have a hot tub and raving about it to the store from which we bought our hot tub (despite them being low-tech). Enjoy it - it’s worth the money! No more surprise water chemistry for me ;)

Purchased in June 2018 when I first heard about it. I've used it with a cheap pool from a warehouse store for 2 summers and this year in our new 7500 gallon above ground pool. It's almost always had odd readings, but generally seemed to be in the right ballpark, so I wrote it off mentally as issues with monitoring changes too closely (hourly/daily) rather than on a weekly or bi-weekly basis like most pool care companies would do.Over the last couple of months though the differences have gotten more and more extreme, the first being insanely high (225ppm+) Total Alkalinity readings, but constantly telling me my pH (one of the readings it does constantly) was always below 7.0. No matter how much pH increaser I'd add (often more than their app suggested) my pH has never been above 7.1 for more than a couple of hours. Recently I've started wondering if there was a different issue and decided to start testing myself with highly rated test strips as well as taking water samples to my local pool supply store to be tested. Sure enough the test strips and pool supply store show my pH is 8.6+ but the PHIN app still tells me I'm in the unsafe zone below 7.0.Additionally the PHIN app continually tells me to add sanitizer (granulated chlorine) or chlorine tablets daily, and today is telling me I'm in the "unsafe" low zone and need to add but the test strips and pool supply store test show my CYA levels at 205ppm and free Chlorine at 15, both of which are 50-200% higher than "normal" and nowhere in the same universe as being low like PHIN is reporting.So aside from probably hundreds of dollars in wasted pool chemicals and potentially endangering my daughter with unsafe water conditions due to the inaccuracies of this device, it also requires a $100 a year subscription to provide these completely inaccurate and useless readings.Love the idea of this device and thought it was decent for a while, but it's clearly a problem the fact they can't notify you in the app that there's a potential issue with the sensor (like opposing Total Alkalinity and pH levels) or accurately measure 2 of the 3 elements they advertise as reading constantly.Have never been more disappointed with any pool equipment/accessory. It'd be better if the product just didn't work at all versus reporting completely inaccurate data which could result in serious health issues to anyone using a pool monitored and maintained by one of these.

I was a little skeptical buying this product when I became a pool owner. I knew nothing about pools so going a step further and getting into something else I didn’t understand was a little daunting. PHin came recommended by a pool consultant so I took a risk and I’ve been very happy with the product so far.There are many pros that come with the product and only one con that I can conclusively say I wish was better.PROs: Tells you exactly when to add chemicals. Keeps track of pretty much everything for you to make sure your pool is balanced. No going back and forth to the pool store or paying a cleaning company to maintain your pool. Excellent customer service. I’ve had the product for over a year and it died. I contacted customer service and they are shipping me a replacement product at no charge. Very positive and uplifting knowing that they have your back.CONs: Not all brands of chemicals are in the database, but I will say that they are adding brands every now and then so it’s getting better. Though not all brands are in the database it’s pretty easy to find an alternative brand to match what you have. Most liquid pool shock is comparable and same with some of the other chemicals. Just look at the concentrations and chemical components to confirm.All in all, I recommend this product to pool owners who don’t pay someone to maintain your pool.