I ordered one 2 weeks ago from J&L. It hasn't come in yet. Seems to be the best one, good reviews from users. You need to buy the hanna calibration solution as well, cant be calibrated from other solutions. Needs to be calibrated monthly
I looked into the Poseidon Salinity Tester, supposed to be good, however I left several emails and phone messages with the company and they never got back to me.
Not sure I want to buy a product from a company (Poseidon) with no customer service.
Do you think your font is big enough?
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