Hanna Checker - Alkalinity Size:0.0 to 20.0 dKH Saltwater 1 kg will treat 31

1 kg will treat 31

2 ppm of ammonia

high purity

this one has two independent 5 amp relay systems

ETL Listed to UL and CSA Standards

Hanna Checker - Alkalinity Size:0.0 to 20.0 dKH Saltwater 1 kg will treat 31Hanna Checkers are small, handheld colorimeters that provide higher accuracy results than typical chemical test kits. Offering improved technology, these portable colorimeters make measurement hassle free with their simple design and easy to follow instructions. Features at a glance: Easier to use and more accurate than chemical test kits Dedicated to a single parameter Small size, big convenience Ideal for: Aquaculture & Aquariums, Water Quality