* PROTABLE DEVICE: This specific gravity meter is designed to give temperature-corrected readings in warm water aquariums. Includes a self-leveling, hanging device and allows your hands to stay dry, avoiding contamination of aquarium.
* ACCURATELY MEASURE: Quickly, easily, and accurately measure your marine aquarium’s salt level and specific gravity with Instant Ocean Hydrometer
* CLEARLY INDICATED: Full range scale features easy to read markings with safe zone clearly indicated. Small and waterproof. No sensor wire needed.
* UNIQUE DESIGN: This product is designed with an automatic level function, can automatically identify the level to avoid errors.
* CLEANING: Do not disassemble. Periodic cleaning is recommended to remove deposits that accumulate on pointer causing in correct reading. Soak hydrometer in mild acid(vinegar) for 30 minutes to remove any deposits that may build up on pointer. Rinse with tap water and lat unit air dry.
* SIZE: 3.5 * 5.5 inches
* 1*Sea Hydrometer
* Note: Fit for warm water aquarium (20°C -30°C) or (65°-85°F)
* Temperature changes will cause the reading changes.
* The accuracy of unit proportion is up to plus or minus 0.001.