▶【Great Compatibility】 The PH Probe fits for hayward sense and dispense model AQL-CHEM and AQL-CHEM-UPG. Also fit for hayward salt chlorine generator models AQR-PRO-SD and HPC-4-ACT-RC. It helps seamless integration with existing auto systems. ▶【PH Measurement】 The probe replacement continuously monitors the water’s pH level by sensing the concentration of hydrogen ions in the water, providing accurate and reliable measurement of PH in pool water. ▶【Quick Response】 The pH sensor automatically adjusts dosing for optimal water quality. Help maintain proper pH range for water safety and clarity ▶【Easy Installation】 .
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