For sale Pennsylvania Hanna Nitrate, Alkalinity, Phosphate ULR, and Calcium Checkers

I have four Hanna checkers that I do not use. I have a nano setup and I trust the water changes more than I would trying to chase a number in a tank this size.

Looking to sell them all in one lot asking $115 shipped, or each one individually at $35 shipped.

Each has a substantial amount of reagent left. Calcium has 14 packets left, Nitrate has 25, and Phosphate has 19. The alkalinity feels more than halfway full as well.