Portable Dissolved Oxygen Water Testing Kit for 40 Tests Glass Bottles_Gas Washing Bottles designed for classroom identification drills

designed for classroom identification drills and examination preparation

Sharp item (such as a nail or dissecting probe) for students to poke small holes in the cups used for filtration Kit Specs

Coated nylon demonstration cord 30 meters long on a cardboard cone

Two 25mm lenses folding out together for 7x combined magnification in a pocket housing

Portable Dissolved Oxygen Water Testing Kit for 40 Tests Glass Bottles_Gas Washing Bottles designed for classroom identification drillsPortable dissolved oxygen kit tests water quality through chemical titration methods, environmental monitoring, and aquatic ecosystem health analysis.