Density meter (hydrometer) allowing easy measurement of the specific gravity of saltwater in aquaria. Measuring range of 1,000 to 1,040, with graduations at every 0.001 and an accuracy of ±0.0005 at 25 °C (77 °F). Dimensions: length app. 27 cm, Ø app. 2 cm
The refractometer is a precision optical instrument used to determine the salt concentration in saltwater aquariums.
Acrylic bracket to hold up to four peristaltic pump pipes.