YASAM - Portable Handheld Salinity Refractometer 0-100 Aquarium Salt Water Measurement

Automatic Temperature Compensation (ATC): Operates between 10–30°C to maximize accuracy and eliminate temperature-related errors. User-Friendly Design: Exceptionally easy to operate and calibrate. Ergonomic Grip: Cushioned with soft, non-slip rubber to provide comfort and insulate the test solution from body heat. Clear Optics: Features an adjustable focus and a high-contrast, easy-to-read measurement scale. Certified Quality: Approved by strict safety and quality standards for reliable performance. Calibration method: Take a few drops of distilled water and place them on the detection prism. Turn the zero-position adjustment screw to adjust the dividing line to the 0% mark. Then wipe the detection prism clean and perform the test. Things to note: 1. Care must be taken during use, and the instructions must be strictly followed. Do not loosen any of the instrument's connections, avoid collisions, or subject it to violent vibrations. 2. After use, do not immerse the device in water for cleaning. Wipe it with a clean, soft cloth. Avoid scratching or damaging the optical surface. 3. The instrument should be stored in a dry place.