DescriptionKeeping your hands clean and can prevent pollution of water from the fish pond. It is easy to read with high precision. Professional design make it able to get accurate reading .The proportion of water sample can be automatically detected.Feature- Color: Green. - Material: Plastic - Size: About 8x4x4cm. - The pen type salinity meter is a precision instrument for testing the salinity value of a solution. - Keeping your hands clean and can prevent pollution of water from the fish pond. - It is easy to read with high precision. - Suitable for saltwater, swimming pool, aquaculture, aquarium (seawater) and pond, food processing and health care products industry. - The proportion of water sample can be automatically detected. The proportion, salinity and conductivity of sea water are shown once.