Teledyne Valeport launches self-calibrating pH sensor
Teledyne Valeport, in strategic collaboration with ANB Sensors, has introduced a next-generation self-calibrating pH sensor designed to transform long-term ocean monitoring. The newly developed sensor combines Teledyne Valeport’s engineering precision with ANB Sensors’ proprietary calibration-free technology, setting a new benchmark for reliability and performance in marine pH measurement. The innovation made its debut at Ocean Business 2025 in Southampton, UK.
Historically, pH data has been acquired using glass electrode technology – valued for its accuracy but hindered by fragility, complex storage requirements and the need for frequent recalibration to mitigate reference electrode drift. These limitations often translate into increased maintenance costs and reduced operational uptime.
The new Teledyne Valeport pH sensor overcomes these challenges with a self-calibrating mechanism that eliminates the need for manual recalibration, significantly reducing downtime and operational overhead. Engineered for durability and ease of storage, the sensor is ideally suited for extended deployments in demanding marine environments.
Long-term deployment in challenging conditions
With this launch, Teledyne Valeport and ANB Sensors deliver a compelling alternative to traditional systems – combining robustness, cost-efficiency and breakthrough calibration technology to support the evolving needs of ocean science and environmental monitoring.
Engineered for versatility and precision, the Teledyne Valeport pH sensor is rated for deployments at depths of up to 1,250 metres and delivers an accuracy of ±0.1pH. Its rugged titanium housing ensures long-term reliability in challenging marine environments, supporting a broad spectrum of applications – from fixed-site monitoring and buoy-mounted systems to integration with ROVs, AUVs and ASVs.
What distinguishes this pH sensor is its combination of straightforward operation, robust construction and ease of handling and storage. These qualities make it especially well-suited for long-term deployment in dynamic marine conditions. Central to its performance is the sensor’s solid-state technology, which offers enhanced durability, even in extreme environments. Integrated reference drift compensation maintains measurement accuracy over time, while in situ self-calibration eliminates the need for frequent recalibrations – streamlining operations and reducing maintenance costs.
Biofouling mitigation system
To further ensure consistent performance, the sensor incorporates an innovative biofouling mitigation system that releases a low concentration of biocide at the sensor head, keeping the transducer clean for reliable data acquisition. In addition, its advanced temperature compensation capabilities enable responsive and accurate measurements across varying ocean conditions.
Designed with deployment practicality in mind, the sensor features Valeport’s proven titanium housing and compact form factor – measuring 204mm in length and 47mm in diameter, and weighing less than one kilogram in air. It operates on a 9–28V DC power supply, drawing less than 32mA at 12V DC, making it an efficient and resilient solution for modern ocean monitoring needs.
