Compatibility:AQL-PS-8-V, AQL-PS-8, for Goldline Aqualogic PS-8 Automatic Pool Control Systems. High quality:Our products are made of high-quality materials with excellent moisture, rust and corrosion resistance and can withstand harsh outdoor environments. It has the characteristics of sensitive response, accurate reading, stable and reliable performance. Product Function: It is equipped with a convenient reading display screen to easily view the information of the swimming pool: swimming pool temperature, air temperature, chlorine content, salt content, filtration status, etc. It is equipped with function buttons for convenient operation. It can start and stop the filtration system, add chlorine, and view the historical records of the system.