If you need a rugged and waterproof meter for testing streams, rivers, and lakes, look no further than the Hanna Instruments HI 9829. It’s perfect for environmental field readings. The HI 9829 can sense pH, temperature, ammonium, choloride, and a host of other things, and is helpful for anyone who wants to know more about their local water supply.

Read the full article here: The Ultimate Water Quality Testing Tool