I was look at this article that I came across....
http://blog.aquanerd.com/2015/10/unboxing-the-exact-idip-digital-water-testing-photometer.html
It looks interesting if it accurate, I think the price point is not to expensive either, will be watching for reviews on this.
http://blog.aquanerd.com/2015/10/unboxing-the-exact-idip-digital-water-testing-photometer.html
It looks interesting if it accurate, I think the price point is not to expensive either, will be watching for reviews on this.