Marine Phosphate Ultra Low Range Colorimeter – Checker HI774

Works as described

Well made. Reasonably priced. Easy to use. No guessing on the color of the test results.

While I’ve used other test kits for a while, it wasn’t always easy to determine the exact right color that the readings showed, and the range of results were sometimes a bit too broad and not specific enough in certain ranges. With the Hanna kit, it’s just as easy to test (despite the slightly finicky packets that you have to add the contents of into the small test vial), and the results are always an exact reading that leaves no room for questioning or wondering what the results might be like the color chart test kits can do. It’s a bit pricy compared to other kits, but it’s well worth the price if accuracy, consistency, and ease of use are important to you. Highly recommend the Hanna Phosphate checker!

I ordered this product to test ULR in my mixed reef tank. Unfortunately the unit I ordered had some sort of defect. I had to spend a bit more to purchase the same unit from my lfs. Today, I reached out for help in returning the defective unit and was able to do so with ease. The unit I purchased from my lfs works brilliantly.

Great product and easy to use.

I should have purchased these years ago. I am just getting back Into the Hobby and these Hanna Checkers were suggested to me on a reef forum. At around $60 each, It is a bit expensive, especially when you consider buying a Hanna checker for each parameters you are testing. The thing is, knowing your exact parameter result and not having to compare results on a color chart is well worth the price. I am able to know exactly what my metrics are and can make decision based in confidence instead of guessing. Highly recommended investing in these checkers! Easy to use as well!

May not be the cheapest option but you can't beat the accuracy and ease.

Very good, practical, professional, accurate, I recommend it!