I've owned one of these for about 10 months now and haven't used it past the first day because the results were all over the place. This is disappointing as I love the ALK/PO4 checkers. When testing I very carefully followed all instruction to the letter, used an insulin syringe for accurate fluid measurements, lab grade DI water (from a lab not my unit) and this yielded totally erratic results. JUST NOW I'm watching a 7 month old Hanna video and notice that the plunger on the reagent syringe was only being pushed down to the first mark before drawing NOT ALL THE WAY. I must have somehow missed this in the instructions. Anyone else have this issue and if so did it correct the problem?
Using this checker makes me feel like a little mad scientist and would love it if it actually worked!
Using this checker makes me feel like a little mad scientist and would love it if it actually worked!