Seawater Salt Meter Aquarium Salinity Measuring Device for Coral Fish Tank Aquaculture Square Shape

Feature: 1. Suitable for warm water (20-30 celsius ). A change in temperature will cause a change in the reading. Unit specific gravity is accurate to +/-0.001. 2. Insert the hydrometer at least 15 cm deep into the tank (if the insertion line is less than 15 cm, the grease on the tank surface will affect the accuracy of the test). 3. When the water reaches the state of full water (upper part with guide plate), lift the hydrometer, the product can be manually or hung on the cylinder, with automatic water level function, can automatically find the water level, to avoid errors. 4. Bubble attachment on the pointer may cause incorrect reading. Please use the hydrometer to carefully buffer bubble attachment. 5. Based on the internal reading of th