First of all, how cool is this if it really work?! Second of all, this is so cool because..... Yes it works!!! This is super easy to callibrate just follow instructions! I added a pictorial I used from the product pictures via amazon. It was easier to see lol. I love the simplicity of this little tool! Turn it on, dip in water, read ph on digital # screen! That’s it people no color chart just easy in your face results! It requires 4, 1.5v batteries, which ARE included! Yay! It’s easy to use, small and lightweight so you can take it anywhere! I’m really excited about this purchase and look forward to using in future projects with my kids and for anytime I personally want to check my drinking water wherever I may be!! Awesome! Would and will definitely recommend this! #RankBooster #Sponsored #Sonkir
https://www.amazon.com/Sonkir-Advanced-Digital-Function-Resolution/dp/B07BXZHRPY/ref=sr_1_fkmr0_1?ie=UTF8&qid=1525528756&sr=8-1-fkmr0&keywords=sonkir+ph+reader