Ensuring long-term pH monitoring in marine environments can be challenging due to biofouling and high ionic strength. PyroScience presents the PHCAP-PK8T-AF-SUB, a next-generation optical pH sensor cap with an innovative anti-biofouling layer (patent pending), designed for extended underwater deployments in coastal and deep-sea applications.

This robust sensor cap is equipped with a total-scale pH sensor (pH 7.0 – 9.0), allowing for high-precision monitoring in seawater. Unlike conventional electrodes, it does not require a reference electrode, minimizing cross-sensitivity to ionic strength. The optical isolation protection layer further enhances measurement stability, making it resistant to light interference and sensor aging.

For seamless integration, the PHCAP attaches directly via the PyroScience SUB-connector to compatible read-out devices. A protective cage ensures durability against mechanical impact, making it an ideal solution for long-term monitoring.