The Compact photometer PF-3 Fish is a product that offers a range of key features and benefits for users. It is designed to provide accurate and reliable measurements of water quality parameters in fish farming and aquaculture. The photometer is compact and portable, making it easy to use in various locations. It offers a wide range of pre-programmed tests for essential water quality parameters such as ammonia, nitrate, nitrite, and pH. The PF-3 Fish also has a user-friendly interface and provides quick and precise results, allowing users to make informed decisions about water quality management. Its unique selling points include its durability, ease of use, and the ability to store and transfer data for further analysis. Overall, the Compact photometer PF-3 Fish is a valuable tool for fish farmers and aquaculture professionals, enabling them to maintain optimal water conditions for healthy fish growth and productivity.