Hanna Instruments TDS Meter - $8
(Need new batteries)
Salifert Magnesium test kit - $12
Expires 7/2014. 80% remaining.
Salifert KH/Alkalinity test kit - $6
Expires 9/2016. 25% remaining.
API Reef Master Test Kit - $12
Calcium, Alkalinity, Phosphate, Nitrate
No expiration date indicated...