The Chemtrol FC Only 1/2" Acrylic Sensor Cell is an essential component for precise water quality monitoring. Designed for ORP (oxidation-reduction potential) and pH probes, this acrylic see-thru sensor cell allows for easy visual inspection. It comes with standard 1/2" threads compatible with Chemtrol probes and can also be adapted with 3/4" threads for use with HP probes. Enhance the accuracy and reliability of your water testing setup with this versatile and durable sensor cell.