Comments: I've purchased severel of the hanna test instruments now and am very pleased with all of them. the phosphate test seems very accurate and the replacement reagents are very cost efficent.

Comments: This Tester and its reagent are the most accurate system to test for Phosphate that I have used...........You must have everything ready to test eg. packet , sizzers etc as you only have a couple of minutes to complete the test before it turns itself off..in the end you will get a very accurate read out numerically , no color matching.
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<br /> Ted

Comments: This reagent is liquid (in a bottle) versus packets of powder. It works well but if it is critical that the reading be correct I recommend doing two back to back tests. The value changes if you wait too long after mixing the reagent (instructions say invert bottle five times and test - if you follow this it will come out correct). Overall it's a great product.

Comments: I have been using what I call the drip system to determine alkalinity. The challenge to determine color changes in the test tube has always been a hassle. I need to change lights, ask others to look at it. Now, with this kit there is a consistent way to reach an accurate number. I love this kit. I am not as happy with their Calcium system but suppose I will get used to that.

Comments: I love my Colorimeter and these were a great deal and super fast!
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<br />Would buy again.

Comments: This was one of the best purchase I've made. No more guessing. I can't wait to get the nitrate checker.