Precision Marine Salinity Refractometer with LED Illumination
Crafted with high-grade optical glass and anodized aluminum housing for corrosion resistance in harsh marine environments. Features automatic temperature compensation (ATC) for instant, accurate salinity readings (±0.1% precision). Integrated bright LED light enables clear visibility in low-light conditions, ideal for reef aquariums, saltwater tanks, or marine research. Dual-scale displays specific gravity (1.000-1.070) and salinity (0-100‰) with a calibrated focus wheel for razor-sharp clarity. Designed for durability: shock-resistant rubber grip, water-resistant casing, and a scratch-proof prism. Includes calibration screwdriver and protective case. Trusted by hobbyists and professionals for effortless water testing—no batteries required. Wholesale-ready: bulk pricing available for aquaculture labs, pet stores, or commercial fisheries. Ships globally with guaranteed lowest B2B rates.