Handheld Aquarium Saltwater Salinity Refractometer

Maintain precise salinity levels in marine environments with this salinity refractometer. Engineered specifically for saltwater aquariums, reef tanks, and marine aquaculture, this precision optical testing instrument measures salt concentrations from 0% to 10% salinity (0 to 100 ppt) alongside specific gravity (1.000 to 1.070 SG) in seconds. Featuring an integrated Automatic Temperature Compensation (ATC) system, it adjusts for water temperature fluctuations automatically to deliver pinpoint accuracy through the high-clarity focusable eyepiece. Built with an anodized aluminum body and a comfortable non-slip rubber grip, it offers marine aquarists and professionals a battery-free way to safeguard coral and fish health.

Key Features

• Dual Specific Gravity & Salinity Scale: Simultaneously measures salt concentrations in parts per thousand (0–100 ppt) and specific gravity (1.000–1.070 SG).

• Automatic Temperature Compensation (ATC): Internal compensation scale automatically adjusts for water and room temperature variations between 50°F and 86°F.

• Battery-Free Optical Prism: Uses natural light refraction through optical glass prisms to project instant, clear visual scale readings.

• Anodized Aluminum Body: Lightweight, corrosion-resistant metal construction with a textured rubber hand grip for lasting reliability around saltwater.

Why Choose Our Handheld Aquarium Saltwater Salinity Refractometer Inaccurate swing-arm hydrometers easily stick, pick up air bubbles, and give false readings that put delicate corals and saltwater fish at risk. Our salinity refractometer requires only 2 to 3 drops of water on the prism to deliver immediate, optical accuracy every time.

Perfect For

• Saltwater reef tanks, marine aquariums, coral prop systems, and brackish water setups.

• Marine aquaculture, fish hatcheries, seafood holding tanks, and oceanography education.

Product Specs

• Scale Range (Salinity): 0 to 100 ppt (0% to 10%)

• Scale Range (Specific Gravity): 1.000 to 1.070 SG

• Body Material: Anodized Aluminum with Precision Glass Optics

• Features: Automatic Temperature Compensation (ATC), Adjustable Eyepiece Focus

Protect your marine life with pinpoint salinity checks—order your salinity refractometer today!