The Salinity Refractometer for Seawater is an essential tool for anyone managing saltwater environments. Whether you're an aquarium hobbyist, a marine biologist, or involved in aquaculture, this device offers accurate salinity readings from 0 to 100 PPT. Equipped with automatic temperature compensation, it ensures precise measurements in any condition. Built to withstand the challenges of marine environments, its waterproof and durable construction is designed for prolonged use. Portable and easy to use, this refractometer simplifies monitoring, giving you peace of mind with every measurement.