Sediment and particulates

"This is a terrific addition and you'll want a digital refractometer if you spend any time at all with saltwater aquariums

MA9001 is a lab grade pH 1

making it a cost-effective solution for routine water quality monitoring

HI96822 Digital Seawater Refractometer | Salinity & Specific Gravity | Hanna seychelle bundle Sediment and particulatesThe HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per thousands (ppt) and specific gravity (S. G. (20 20)). The instrument's high accuracy and simple operation gives reliable results each and every time. All readings are automatically compensated for