Thanks for the link! Worked for me to order one from MD!Yeah I don’t know if this was the the preorder link but if you do a search on the site you can’t find it. The only way to order is from this link: https://www.marinedepot.com/hanna-instruments-nitrate-checker-high-range-marine-hi782
Also I’m just realizing I’ll need reagents as well! 10 reagents for my 4 tanks is not going to last long. If anyone get a line on some please let me know.