Hydrometer for marine aquaria with temperature compensation.
Hydrometer for seawater and other types of water that contain salts or other soluble substances. A new technical principle enables density measurement quicker and simpler than ever before. The density can be read directly and clearly from the scale. Accurate indication within the required temperature range with its own temperature compensation. Swinging needle indicates correctly even when the unit is lying at an angle. Rotary valve prevents dripping and residual air suction. Made of stable plastic in a handy shape.
