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I just calibrated the trident no longer than 2 weeks ago. And the reagent is fairly new not pst expiration date.How long have you had the Trident and have you calibrated it? How old is the reagent for the Hanna?
how long has the reagent for the hannah been open? HAs the trident been calibrated yet? I would trust the trident over hannah as ive had experiences where if the hannah reagent is at a month old its values are off
honestly the reagent been open at least 2 months and I never thought the levels would be off from the reagent but it makes sensehow long has the reagent for the hannah been open? HAs the trident been calibrated yet? I would trust the trident over hannah as ive had experiences where if the hannah reagent is at a month old its values are off.
I had the exact same experience! Guess it’s time to get a third test kit?My hanna alk checker measures the apex calibration solution around 1dkh higher than what's on the lable. I trust the trident over the hanna in my case.
Check the trident calibration solution with the hanna, and see what you get.