Features: 【Great Compatibility】The Orp 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. 【ORP Measurement】The probe replacement monitors the oxidation-reduction potential(ORP) of water, providing accurate and reliable measurement of ORP in pool water. 【Quick Response】The ORP probe provides real-time input to the system, which then automatically adds disinfectant to maintain target ORP level. Help maintain proper sanitizer levels for water safety and clarity .
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