www.hannainst.com

Good.

I purchased both the phosphate low range and phosphorus ultra low range meters. The 3 minute count down function does not work on either one. I presume I can let the sample sit 3-5 minutes and then run the test. If not, please let me know. dandavisddmd@gmail.com

wonderful service and very fast response.

Haven’t used tester yet.

I didnt have any contact with the company after I rodered the product. It came in a relative timely manner, was well packaged, and the order was correct.