The floating smart pool sensor, mobile store and pool chemicals that simplify pool care . Monitors your water 24/7 and notifies you when it's time to add pHin . pHin uses industry-grade sensors and wireless technology for easy pool and hot tub maintenance. POOL & HOT TUB CARE. Monitors your water 24/7 and notifies you when it's time to add chemicals. SEE HOW IT WORKS. pHin Makes Water Care Easy. pHin makes pool care simple! Get the pHin Smart Monitor, Mobile App and build your own pHin solution. pHin Water Care Hot-Tub Monitor and Chemical Bundle: Amazon.com: Industrial & Scientific. Find helpful customer reviews and review ratings for pHin Wi-Fi-Enabled Smart Water Care Monitor for Pools and Hot Tubs, HPR1710 at Amazon.com. With Sutro, customers can monitor their water chemistry with the push of a button. . Two new companies, pHin and Sutro, have asked that question of the pool . water-soluble pods — containing chlorine (or bromine for hot tubs), shock, pH . Sep 6, 2017 - The pHin smart water monitor lets you easily keep track of your pool or spa water chemistry using your smartphone.